ok, i have apps on my ipod touch that i got on another computer and i downloaded apps on my current computer. Now, how can i sync these apps i just got to my ipod without erasing those i already have in it???????? please, i really need help
If they're all with the same iTunes account - just download all the apps to your PC first. If they're from different iTunes accounts you may be stuck, because you can only log in as one account at a time. (You could still try downloading all of the apps from the different accounts though...)
Actually, just ran into this duel account issue. You need to authorize both accounts on your computer. The log on to each account and download to iTunes( you can do them one at a time). It will consolidate both accounts, then just sync to your device.