Haswell Ultrabooks, Touch Laptops, And Convertibles Available now for Order / Preorder - Which will you buy?

Eager to replace my 8gB RAM dual-SSD $999 touch/convertible Lenovo Yoga with something a little less carpal-tunnel-inducing & with battery life at least meeting if not exceeding the Samsung Series 9 (which I had been acclimated to immediately preceding the Yoga), I've spent a couple hours scouring the web for info on new Haswell machines & their availability.

TBF, I've been keeping an eye on ultrabook offerings pretty consistently due to my total and utter bewilderment at the lack of viable options - really, the Lenovo Yoga has been the only legitimate choice for quite some time now - and it certainly has its shortcomings.

Fortunately, Haswell promises to remedy the situation.

"Delivering Intel's largest generation-over-generation gain in battery life enablement in company history"1, Intel's new haswell CPU is key to bridging the gap in portability, power, and battery life between tablets and laptops. But you already knew that.

Tomorrow might hold some exciting releases for Haswell ultrabooks, but sadly, Intel & notebook manufacturers seem to be planning on a Fall launch for the majority of the first batch of Haswell machines, timed for back-to-school shopping.

However, there still are a few machines available now and available for preorder:
-HP ENVY 17"
-Several MSI Gaming Notebooks including a $1300 12gB RAM 17" w/ a GTX765M
-Lenovo's Y410P 14" for $720 and the 15.6" Y510P for ~$1000

Right now most machines available use the i7-4700mq haswell chip but there of course are lots of other flavors to go around.

I've found ultrabooknews.com to be my favorite source for succinct, up-to-date info on ultrabooks, without all the clutter of other tech news sites. If you have other recommendations, let me know in the comments.

Personally, I'm thinking the Sony Vaio Pro 13" or the Asus Book T300 look like good candidates for my next machine (unfortunately I have to rule out the Zenbook Infinity because it's not convertible). What do you think?