I know there won't be many people here that have Windows phones, I know we're pretty evenly divided between Apple and Android....but there's got to be at least a few Windows Phone users. Let's talk apps. This is hands-down the biggest flaw of the WP ecosystem, but there are a few gems out there. Any apps you guys use regularly and would recommend to other users? Also, include the device you're using since some apps are locked to certain phones.
Apps I use daily on my HTC 8x:
Cracked (app for viewing articles from
www.cracked.com. Interesting stuff from time to time if you haven't checked it out)
Garmin Street Pilot (The 8x doesn't have built-in turn by turn directions yet, and since HTC hasn't released theirs and we don't have access to Nokia Maps, I had to go 3rd party. The trial gets the job done, directions up to 30 self miles, which works since RI obviously isn't California.)
Guitar Chords (Self explanatory, teaching myself how to play. Not going well btw

)
PC Remote (Connects to your PC via WiFi and acts as a keyboard/mouse if you don't have wireless ones already)
Podcast Picker
Snes8x (SNES emulator)
YouTube Browser (No official YouTube app or even broswer access since Google is a
dick)
WP Central (Great site for reading up on new articles/app and game recommendations/ tips and tricks)
Games: Where's My Water, Word tWIST, Stupid Test, Doodle Run, Sudoku, Pac-Man Championship Edition.