Cant wait for the sequel that will be reveal this coming Google I/O.

RM820 from Newegg for wifi only model.
RM1k++ for local set wifi+3G

Nexus 7 is a no brainer choice.

+1
Snapdragon seems to be good at average power/performance.
the only advantage of Tegra is Tegra exclusive game titles.

Agreed

rumoured to come with better SoC( snapdragon 600/800)
better screen( larger/ less bezel / higher resolution)
back camera.

but rumoured also said it will be cheaper than the current.
but just take it as a pinch of salt.
until the real thing come out just ignore this.
If it will launch on july, expect it will come 1-2 month later to bolehland.
if u want to use now, just get the current one.

the SoC is S4 or S600?

Definitely wait for new version.
1080p screen yo.