LINKEDINAvailability: iPhone, Palm

Cost: Free

Forget business cards; connect with people on the largest professional social network the moment you meet them

PROONGOAvailability: BlackBerry, Windows Mobile

Cost: Free

Keep a log of travel expenses plus photos of receipts; e-mail the report to your desktop

FEDEX MOBILEAvailability: iPhone

Cost: Free

Track shipments' status and get updates when they arrive

SALESFORCE MOBILEAvailability: BlackBerry, Windows Mobile, iPhone

Cost: Free for Salesforce customers

Monitor sales leads and accounts from the field DOCUMENTS TO GO PREMIUMAvailability: BlackBerry, Android, iPhone, Palm, Windows Mobile

Cost: $10 to $70

Create and edit documents in Word, Excel, and PowerPoint. Even has a spellcheck

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