• WordPress – This free app from WordPress has allowed me monitor and update all of my blogs from just about anywhere.
• Pandora – There are several free streaming music apps for the Blackberry. With Pandora I can enter favorite bands or songs and channels with similar music is created.
• Facebook and MySpace – I’ll just lump these together, since they pretty much do the same thing – updating the social networking sites.
• Google Sync – Blackberry has its own calendar, but I already use Google Calendar. This app syncs the two, as well as you contacts.
• Google Mobile App – Sometimes it’s too time consuming to bring up a the Blackberry browser and manually typing in your query. With this app, you can speak your question, or keywords and it will search for you. (Apparently, this does not work on the Blackberry Storm)
• UberTwitter – This is pretty much the king of Twitter apps for the Blackberry and retains most, if not all, of the functionality Twitter.com offers. Of course, it’s no match for a PC client like TweetDeck.
• PayPal – There’s not too much to this one, but being able to send payments and check your acct history while traveling is pretty cool.
• The Weather Channel – I prefer this weather app over others, like WeatherEye, because it offers a longer forecast and has less intrusive advertising.
• Poynt – From locating businesses, restaurants movie times and gas prices near you, this app does a lot!
• Blackberry Messenger – This one is pretty muck a given. It’s a quick and easy way to chat and share pictures with friends and famiy.

Most of the Blackberry apps listed above can be found at BlackBerry App World and the CrackBerry App Store. Enjoy!