Wayne -- My guess is that in the 30-40" range, LCD is outselling plasma by a small margin -- in the U.S. at least. There are more LCD SKUs, including some bargain-basement off-brands.
That said, in the major-brand category, I'd guess that plasmas still outsell LCDs. The 37" Panasonic plasma is a steal, price-wise, compared to the 37" Sharp LCD. And there is also now a 37" Sony plasma to go along with Sony and Hitachi (and Philips?!?) at 32".
In LCD, there are major-brand SKUs from Sharp, Sony, Panasonic, Toshiba, Mitsubishi and Samsung, but nearly all of those are $4000 and up at retail.
Anyway, if I'm making plasma displays, I've seen the writing on the wall for a long while... I have two choices --> Either learn to make the sub-40" displays a lot more cheaply or ultimately cede that market. This year, the LCD pricing picture is speculated not to improve much, so we won't even really see the answer until next year.
EDIT: It looks like Hitachi -- which makes plasma glass -- is replacing its 32" flat panel with an LCD in next year's product line (the one that starts arriving later this year). Perhaps this year we learn that plasma is not competitive enough down there? That said, next-generation mfg. may change the equation one again.
I have long believed that the most common TV of the HD generation is going to be a 30-32" LCD. That will be the most likely living-room purchase, the way a ~27" CRT is these days. Obviously, home-theater aficionados will find ways to afford something larger.
