This list is still a WIP, have more stuff I need to try out and add.
Blackberry 10 Apps: Split The Check+(PAID) - Lightweight bill splitting application that I wrote with sharing functionality and GPS location.
Allows you to easily:
-split the bill between multiple people
-share the cost per-person including your current location (optional) with others (text message, twitter, linkedin, bbm, create a personal reminder, etc).
-GPS location is shared as a google maps link so anybody can open it and see where the expense happened.
-saves your recent bill splits + location locally in the app.
Banking & Finance
Chase Mobile Banking - Have to sideload, works great. Money Plus(PAID) - Find the cheapest gas nearby. Pageonce(FREE) - They've been around for a long time, aggregates all of your bank accounts, credit, cards, bills, etc into one place. Provides email alerts, bill payment service, credit score monitoring service (costs extra), etc. Note: Verizon BB10 users seem to be having problems that other carriers are not.
Mapping, Navigation & Local Search
GasBuddy(FREE) - Find the cheapest gas nearby. Spotcast(FREE) - Local search similar to Yelp. The app works very well, although the community is still very new so there aren't many reviews yet.
gNewsReader(PAID) - Excellent, fast, and easy to use Google Reader RSS client. They are implementing new backends for the close of Google Reader (newsblur, etc). Alien Flow for reddit(FREE) - Reddit reader that is native and built with Cascades, very smooth
Social & Sharing:
Trapeez(PAID) - A nice tumblr client.
Untappd(FREE) - Social app for beer drinkers.
GAuth(FREE) - Simple client to generate keycodes for Google 2-step authentication, works great. Hub++(FREE) - Allows you to customize notifications and LED colors, has great customer support as well. Currently 3rd party apps cannot run in the background unless you leave the tile open. Password Keeper(FREE) - Secure password storage, great app. QR Manager(FREE) - Simple and easy to use QR code creater and scanner.
Let's Golf 3(FREE) - Fairly fun golf game, nice graphics. Robotek(FREE) - Great graphics, fun to play. The RNG can get really annoying sometimes though... Stunt Pear(PAID) - Very fun physics based game, highly recommended and only $0.99. Easily one of the best purchases I've made.