Research In Motion(RIM,Waterloo,Ontario) recently joined Apple and Google by opening its online store to sell third-party applications for its smartphones. The BlackBerry App World, which can be downloaded for free onto your BlackBerry, offers hundreds of applications for social networking, productivity, reference, entertainment, personal finance and more.
Dexrex SMS Backup
If you’ve ever accidentally deleted an important text message, don’t worry — Dexrex can help you get it back. The app stores and archives all incoming and outgoing text messages sent through your BlackBerry and lets you access them simply by signing into a password-protected account on their Web site.
Publisher: Dexrex
Cost: Free 
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Exgis Mileage Tracker
Designed for frequent business travelers, the Mileage Tracker lets users keep data on the distances they’ve traveled and export it to a company mileage spreadsheet.
Publisher: Exigis, Inc.
Cost: $4.99
StormLock
While the BlackBerry Storm does many things well, one of its problems is that it’s all too easy to accidentally mute your calls by pressing your face up too close to the click touchscreen. The StormLock eliminates this problem by temporarily locking up your call screen while you’re making a phone call. The application automatically shuts off once calls are completed.
Publisher: Steelthorn Software
Cost: $2.99
gFlashPro Flashcards
Anyone taking a professional exam can make use of these digital flashcards that let users make their own personalized quizzes with user-generated content.
Publisher: gWhiz LLC
Cost: $4.99
Salesforce Mobile
This application is basically a way for salesmen to manage contacts. If you’re, say, a router vendor, you can sort all of your sales contacts as accounts, opportunities and leads. The app also helps users keep track of their latest sales account activities and to log sales into a database.
Publisher: Salesforce.com
Cost: Free to download,requiers a subscription
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