Bigger Screen for DSi? *edited*

I have mentioned several times I want a DSi, but I am still concerned about buying one only to have the price drop a month later. Now there is a rumor that the DSi will be getting a screen size update, but only in Japan. I should point out that Nintendo has called the rumor speculative. On the other hand, the original source of this rumor has a history of getting the story right. I really have a hard time making the decision to buy a DSi when it seems that there is a lot of speculation that if true could make me really regret my purchase. If this rumor is true and it is released in Japan it would probably only be a matter of time for the luck to spread to other countries. I know Nintendo is doing well, but is anyone else worried about giving them a lot of money just for something else to come out within six months?

Nintendo DSi Matte - Black
Nintendo DSi Matte - Blue
Nintendo DSi - Pink
Nintendo DSi - White

*EDIT*
Ok. So, I wrote this last night before going to bed and what did I wake up to? This:

(Credit: Nintendo Japan)

Nintendo has taken the wraps off a new version of the DSi handheld that sports larger 4.25-inch dual screens. The portable gaming unit will be considerably bigger than current and previous DS and DSi models. It will be dubbed the DSi LL in Japan where it goes on sale on November 21 for 20,000 yen (about $220). In Europe, the unit will be known as the DSi XL when it appears on store shelves in the first quarter of 2010. Nintendo did not provide details on a possible North American launch.

The DSi LL's larger screens require a much larger housing than the original DSi

(Credit: Nintendo Japan)

Tor Thorsen has additional details on the DSi LL/XL at GameSpot. But, with the possible exception of some bundled DSi Ware titles, this is exactly what it looks like: a supersized version of the DSi. We're still scratching our head as to who would actually want one of these, since we've always felt the pocketable aspect of the DS/DSi was one of its great advantages. On the other hand, many of us never expected Nintendo titles like Wii Fit to achieve megahit status, either.
What about you: would you be interested in b