It will be interesting to see if they resolved the overheating problem with HD when IBIS is on. But it looks like it will be a very good HD camera. Still would like to see a A700 replacement dslr. SLT are good, but for full control when shooting action, the dslr option would be nice for sony users. Something like 8fps with full control with an ovf for tracking and panning shots.
I'm not sure how they can overcome the overheating problem since from what I've read, it's due to the sensor shift stabilization. Panasonic sidesteps a lot of that issue because their stabilizer is lens based. I've read the GH1 has a big heatsink on the sensor so maybe Sony can put a bigger sink on the sensor.