A large amount HTC G1 users have been hit with a corrupt application called MemoryUP. The program makes claims that it will clean up your memory and improve the processing speed on your device. However, when users started the app a variety of problems started occurring.

Some users complained of all of their contacts being deleted, others were instantly spammed along with the addresses on their contact lists. Others experienced complete memory loss as well as SD cards being cleared away as well.

T-Mobile has not yet commented on the app as they are not affiliated with it, but this doesn’t satisfy the estimated 10,000 to 50,000 users who fell victim to this bunk application.

So beware and tell your friends to avoid this application. You should also be aware the the Java in the phone and the actual construction of the Android OS does not require any assistance in cleaning up memory in the device. This will be done automatically.

It leaves us to question the possible advantages of open source software mixing with commercial devices. Are you rethinking your mobile choices considering the possibility of these dangerapps out there?