Ok, to clear up some of the confusion.
The dual-booting device is the Viewsonic ViewPad. It runs Windows 7 and Android 1.6 on an Atom processor. This item is not out yet.
The device that is now available at Sears is the Viewsonic G Tablet. It sports a Tegra 2 processor and Android 2.2 but it is buried below the awful TapNTap interface which is sort of like the Droid dock app gone way wrong and "always on." Top it off with the fact that it appears to be running (or at least how websites see it)Safari as a browser (which may be in part why Flash isn't working).
The hardware specs on this thing is really good, but the implementation is so friggin' dreadful it defies description.
When I called ViewSonic tech support (twice), the rep that got on the phone had to "go track down *the* tablet they have for support. One! It appears that after just a couple of hours with the Tablet, I now know more about it than their support people.
Unfortunately, my machine seems to have had a "rogue" download... it ran an update to a later version of the TapnTap interface (that even the reps don't have), and with that "unreleased" version, it broke app installs (tells me, that for security my *PHONE* only allows installs from the market, which is funny since the market is not on the device). So now I can't even install LauncherPro or ADW to see if it improves things over TnT.
The part though that has me considering not waiting to hack this thing and just returning it is that Wi-Fi reception seems to be weak. I can sit in the same spot in my living room and have great reception with my Droid X, but barely register a connection on the G Tablet.
It really seems like Viewsonic had a shot at a really good Tablet (at least hardware wise), but totally biffed it by adding the TapnTap interface to it. If they had just gone with the stock UI and maybe added a couple of their own widgets (or a dock mode like the Droid for when you place the G Tablet in the optional dock) they could have had a hit. Instead they got a dud.
There is an update due for TapnTap that is due out the week of Thanksgiving, but I suspect it is not going to help enough to fix this.