The G30/XA25 looks really good.
Some new feature I don't have that would be very useful
- wider angle lens
- more zoom (not so handy, but ok)
- 3.5" screen instead of 3" screen, with increased resolution (super important for a technical blogger looking at boards etc through the lens)
- Much improved touch screen. The G10 is a dog to use, lots of pressure required.
- WiFi that allows manual control from a smart phone. The G10 only allows rudimentary control via remote
- MP4 recording (also simultaneous) which allows faster direct upload for non-edited stuff
- Bigger sensor for lower light work. For those not aware, a typical office environment
is low light.
- 50P. Meh, might come in handy for action stuff.
- A real size shoe mount
But it's now over a year old? Maybe a new one in the works?
This seems like a comprehensive review:
http://tubeshooter.co.uk/2013/06/22/preview-canon-xa20-xa25-hf-g30/