I'm gonna go with Kit Kat...
I do agree with svd though. Why make something if you're only going to send it to 10% of what COULD use it just fine? Just make everybody wait with GB until ICS is perfected for multiple devices. From it's first release to it's last, every capable device should have ICS, a stable, reliable OS we can all enjoy for 2ish years while Jelly Bean is being perfected to do the same and REALLY blow our mind, not just be insane build up to minor improvements. Speculation is one thing, but the fact JB is going to be on devices possibly before we even get ICS, which was a selling point for this phone, is kinda ridiculous.
Trust me, I'm all on board with knowing the next thing is always around the corner, but a) that doesn't make it ok and b) I think that can easily still be the case with Gingerbread, yet here we are talking about Jelly Bean. Just seems unnecessary...