Was searching installer.app as usual and found a new keyboard layout which I installed but then a warning came up saying I had low memory left (seems very strange since Itunes says I have about 6 gb left) and the phone frooze. So I had to turn it off but once iI turned it back on all hell brooke loose.

The whole menu is back to the orginal settings, but all programs are still there, I can only use the phone for about 5 seconds before it frezees up. The menu keeps rebooting itself and if I manage to click an app the little round symbol pops up (the one that shows after youve changed something in customize or summerboard).

Does anyone have an idea on what to do?