it seems that the next upgrade for Phase products will be the live preview focusing (+ maybe screen?) for its P series backs, and mainly, wireless transmission of images.
so you could hold out for that, though it will be $. (personally these things make little difference to me, but to some it will matter).
meanwhile you could get an ultra portable laptop - a really tiny one like the new Sony UX50 that was announced recently, and use that tethered via F/W.
http://www.engadget.com/2006/06/07/sony-va...0-on-pre-order/its full version Windows XP, so should do the job, if a little slow.
if you are looking for something like an I-Paq handheld, that wont work at present with Phase products.
as for the 32 sec limit. yes, its annoying, I came up against it recently.
sadly we are using hybridised devices - with the latest digital backs stuck onto old film cameras, and really the cameras arent up to the technological game.
hopefully at Photokina this year, things will change.