- HD Resolution 16:9 (960x800/480 or so to make it HD 720-ish). - HDMI port. - Smaller. - More durability while playing games from 3h to 5-7h. Good thing I thought of these things before planning on getting a PS Vita, PSV not having an HDMI port really sucks (the dev vitas do)!
I would like them to replace improve LiveArea user interface. Personal preference at the end of the day, I think it looks cheap / tacky and it does not really appeal to me. The battery life is not great for a mobile gaming device, although i guess thats on par with most new smart phones at the moment. I just expected it would be a lot better. It would be nice to see a significant improvement in that.
Luckily I had a chance to play with it for 5 minutes. When I arrived on the shop a friend of mine was just buying it. I played Uncharted- Golden Abyss. I found the touch screen adequately effective and for a while, I admit I felt like I was playing on the PS 3.
You're saying the Holy Dreamcast looks cheap? That's pretty much the Dreamcast's dashboard Sony's using now, quite nice to revive DC on a portable device.
Battery life has to be the biggest killer, i think that's more of a limitation of the battery technology today however. When you think how powerful it is 4-5 hours is not too bad.