I have it, I love it and I heavily use it everyday... I hope this device can get more support, but it's wishful thinking...
It's a known issue unfortunately. I'm in the opposite situation, I appear to be always online to them.
Nope... It is not supported by the hardware in our device and even if it was, I am not experienced enough with kernels to do it ;)
It is, same sound chip as S3... but I see your point :)
You can buy a 64 gb card and it works flawlessly. There's a thread on that.