DocViewer ($3.99): This app uses FTP to download files from other iPhones or from remote FTP servers.
PDF Reader Pro ($.99): Upload PDF documents over WiFi and view them in landscape mode.
Print & Share ($6.99): Print e-mails, attachments, files, photos, contacts, and Web pages with this simple app.
Quickoffice Mobile Office Suite ($19.99): True cut-and-paste editing with Microsoft Office Word and Excel docs. Also accesses files from MobileMe or networked computers.
ReaddleDocs ($9.99): Load documents from computers, Web sites, e-mail, and even other iPhones.
Dow Jones: Sales Triggers (free): Get access to the latest business trigger events and look up companies and executives.
Epiphany Recorder ($2.99): This audio recorder offers a simple way to record moments that just happened. Tap the Remember That button and it saves the previous two minutes of audio.
eWallet ($9.99): Secure all your passwords and bank numbers with one trusty app.
FedEx Mobile (free): Get up-to-date shipping and tracking information, so you'll always know when your shipments have arrived.
iTalk Recorder Premium ($4.99): This voice recorder saves your notes and lets you transfer them to your computer over a WiFi connection.
iTrack ($.99): Track packages from multiple carriers, including FedEx, UPS, USPS, and DHL.
Keeper ($.99): Store all of your passwords, notes, and log-ins with one super-secure app.
mBox Fax & Voice (free): Stay in touch the old fashioned way. mBox is a virtual fax machine and answering service.