I'm running warheads from bh_man first off. I just got apps2sd working tonight, but shortly afterward every app I tried to install would fail install with "installation unsuccessful". After an hour of searching, I decided to clear out the dalvik-cache. Well, I did this and I was able to install apps again. I installed two apps, and I kept getting a force-close on Titanium Backup -root version. I rebooted the phone (Behold 2), and now all of my apps are gone. I've got a bunch of default android boxes, and no working apps. I checked my sd card, and all of the .apk's are still there, but they aren't in the dalvik-cache folder anymore. What's strange is that some of the apps are there, like gstrings and quick system info, but the vast majority aren't, like handcent and beautiful widgets. I don't know what I did, but I'd really like to know how to get them all back. I tried installing handcent from the market, and it says that it can't install it on my phone, so I really need to get this fixed because I really don't want to start all over again.