T-Mobile's not officially selling its world-beating HD2 until Wednesday, but if you've a Walmart nearby and hankering to get HTC's latest and greatest a few days early, it might be worth a trip out. JDMiPhoner managed to score one from his local Wally World a full four days early, and he's been kind enough to unbox it, boot it up and give us a few first impressions on video. Is it really worth a couple of Benjamins with Windows Phone 7 Series just a few months away? Head on past the break if you'd care to be reminded of just how painful it is to know that this WinMo 6.5-packin' gem