Garageband equivalent for Android? I am thinking about getting an iPad 2 just so I can record music on Garageband, provided I find a way to input a USB mic. Anyways, I am admittedly a Google and Android fan and would much rather go that route and record music using an Android tablet where there would for sure be much more interoperability and maybe even a cloud sync service where I could collaborate with another musician 1,000 miles away in high quality, lossless form. Is there an app on Android or a web app that would support this kind of user experience on par with the user experience of Garageband?

I don't mind sticking with an iPad 2 for a year and then going back to Android when something more mature for Android comes out, but just thought I would ask here first.
Looks like the best options would be:


uloops 
caustic 
nanoloop 


I haven't tried any of these on my tablet yet (advent vega). Let me know what you find