Well there are a couple of ways.
1) you can go to the apps screen then hit your menu button and go to delete find the app and delete it. But the downside to this is most apps carry pdb files with them as well. If you don't know the pdb files then you have some left over junk on you device taking up memory.
2) You can use a 3rd party software that cleans the app and pdb files off your device when you hit delete "TCPMP". The only one I know of is neat freak pack. But I have never used it, so can't tell you much about it. Sorry.
3) Last is you could hard reset your 700p and that will take care of the app. But I'm sure you don't want to do that...
