Can you run iTunes on it?
Im basically replacing my laptop (potentially) so I'm wondering if I can put iTunes on it, or any tablet, to support my iPhone?
Sort of. Of course you can install iTunes on an actual laptop or desktop machine and there store all of your music, videos, etc. There is also a free app on the Google Play store called Synctunes free for iTunes - PC. The app allows you to sync your iTunes music, podcasts, and videos from your iTunes library via WiFi. Since iTunes is a cloud application whatever is in your cloud would be on both devices.