21) Bluetooth File Transfer With this app, you can explore and manage the files on any Bluetooth-enabled device, receive files and send contacts. It's built on FTP and Object Push Profile (OPP). Free.
22) Howcast for Android Need to know how to change a tire, make banana pudding or survive a long airport layover right now? Howcast puts instructional videos in 25 categories right at your fingertips. Each video also comes with text instructions. Free.
23) TED Mobile Since 1984, the world's best and brightest have gathered at the TED (Technology, Entertainment, Design) Conferences to spend no more than 18 minutes talking about the thing that fascinates them most. It's always illuminating, and with this app you can search and watch more than 700 TED Talks right from your phone. Free.
24) Amazon Kindle for Android Want to read an electronic book, newspaper or magazine but don't have your Kindle with you? Or don't have a Kindle at all? It's not a problem with this app, which allows you to read any of 900,000 Kindle-formatted books with your Android device. And Amazon's Whispersync that your last page read, bookmarks, notes and highlights will sync across your various devices. Free.
25) Kongregate Arcade for Android Want to stay up on the newest and hottest Flash games around? This app gives you free access to more than 300 games from the Kongregate community and fully integrates with your existing Kongregate Web account. Free.
26) Handcent SMS Handcent SMS supercharges your texting with full support for SMS and MMS, group sending options and backup and restore features for SMS and MMS. Other features include the ability to customize your look with themes and SPAM filtering options. Free.
27) Thinking Space Thinking Space is a mind mapping application that allows you to visualize, structure and classify ideas. You can create nodes, add notes to them and arrange them, all with a UI that makes it a snap to work with. The maps you create with this app are also compatible with PC-based Xmind and Freemind. Free.
28) eBuddy Messenger This comprehensive IM client allows you to connect to multiple MSN (Windows Live), Facebook, Yahoo, AIM, ICQ, GTalk, Hyves and MySpace accounts all at once. It shows all your contacts in one list and runs in the background. IMs are sent as data, not SMS. Free.
29) WolframAlpha Access WolframAlpha's computational knowledge engine from your phone with this app. Also available for free via the WolframAlpha Web site, the app calculates the answers to complex mathematic and scientific problems in an instant. The app version adds a keyboard with all manner of mathematic and scientific symbols to make entering queries a snap. Paid: $1.99.
30) Evernote This app allows you to log, index and search all manner of information, from notes to audio to photos. For instance, you can take a photo of a white board and Evernote will recognize the text in the photo, index it and then allow you to find it later by entering a search term from the information on the white board. It even synchs with the Web. Free.
31) EverPaper EverPaper is a simple but excellent Instapaper client. It doesn't support folders yet, but it's under constant development. It also syncs with EverNote. Free. ) Yelp Yelp for Android determines your current location and then lets you search for nearby businesses, read reviews and so on. It also lets users filter by "Price," "Open Now," "Special Offers" and "Hot on Yelp." Free.
32) ActionComplete ActionComplete is a robust task manager. It is built around projects you create, which are made up of individual actions that serve as milestones in the project. The app is based on the Getting Things Done (GTD) methodology created by David Allen in his book: Getting Things Done: The Art of Stress-Free Productivity. Free.
33) SMS Backup + This app automatically backs up SMS, MMS and call log entries to a separate label in your Gmail account. Free.
34) Fusion Voicemail Plus Centralize all your voicemail boxes, including mobile, home and office, on your Android phone with this app. It can receive and display FAXes too. Free.
35) Google Voice Streamline and consolidate your phones with this app. It gives you a single phone number that rings all your phones. In addition it saves all your voicemail online and even transcribes your voicemail into text. It offers a host of other features too. Free.
36) Time Recording Time Recording is an app that lets you manage your time sheet, including options like tasks, target time, hourly rate, paid overtime and multiple data/time formats. It also supports CSV export. Free.
37) Time Recording Time Recording is an app that lets you manage your time sheet, including options like tasks, target time, hourly rate, paid overtime and multiple data/time formats. It also supports CSV export. Free.
38) Parcels This handy app lets you track all your packages in one place. Carriers supported include: Apple, Fedex, UPS, UPS Mail Innovations, Amazon.co.uk, Amazon.com, Amazon.de, DHL Express National (Germany), DHL (Germany), DPD Standard (Germany), GLS (Germany), Hermes, TNT, TNT International (Netherlands), TNT National (Netherlands), OnTrac Shipping, LaserShip, Posten (Norway), Post (Austria), Post (Switzerland), Posten (Sweden), USPS, DHL (USA), DHL Express (GB), Home Delivery Network (GB), Japan Post Int. Mail, CNE Express, Royal Mail, Spee-Dee Delivery (USA), Parcelforce. Free.
39) NewsRob This is an excellent, plain but functional Google Reader client with built-in syncing for off-line reading. Free and paid. The free version features ads. NewsRob Pro goes for $7; it removes the ads and adds exclusive features for power users.
40) Read It Later A simple, reliable tool that adds Instapaper to your sharing menu, so you can quickly tag articles as you browse. Free.