Let me think ... Oh! Yeh! ... the reason I purchased HDDVD and not BD was because HDDVD players could play any DVD I own (except BD, natch

) and the upscaling quality of the Tosh player is simpy superb.
I just can't get worked up about combo-formats, dual-formats, dual-players, etc. To me the majority of new movies released by the studios are terrible (there are exceptions). If Criterion were to totally suport BD, I'd have to think long and hard about purchasing a second HD player, this time BD. But for Time/Warner libraries ... it all depends on what they'd release on their dual-format. Casablanca looks superb both in its HDDVD cut and in having the Tosh upscale a regular DVD, whereas the Searchers is different ... better HDDVD quality, but then it is a much newer movie.
Let 'em throw whatever disks they want. They threw DIVX and we threw up. They threw Betamax and we threw up. Instead of releasing more quality movies in a particular format, they're blowin' their budgest on new formats, dual players, etc.
In five years, it'll all be down the drain anyway since the only way to get new media into our systems will be via their tightly controlled and DRM'd-to-death broadband delivery.
2 cents worth of rant.