Actually music bought through iTunes has been DRM free for some years. I have some on my phone - I didn't worry about syncing though, just copied it straight to the music folder on my phone.
But my reading of the OP's question was "can I install iTunes on my Galaxy Tab so that I can load music from the tab to an iPod". This isn't possible since, as has been said, iTunes is only availble for Windows and Mac. So given that iPods only let you install music via iTunes, the only option I can see is to import the music from the tab into iTunes on a PC or Mac, then sync the iPod with the computer.