Old news to most around here, but thanks for posting it.
www.geomangear.com has all of the details... I just got my notification that my rebate has been processed and the check is on the way.
By the way, if you are thinking about holding out for the 705 because of the navigation features only, I'd say do not bother. I preloaded 5 days worth of courses into my 305 and followed the breadcrumbs over some very rural roads last week - the Edge worked flawlessly and many times when the cue sheet was confusing or even incorrect the GPS pointed the way correctly. I love my toy!