M1530. Earlier today, the "Select My Processor" page seen while building an M1530 showcased the following message: "Intel Core 2 Duo T7250, T7700, and T7800 require a selection of 128MB NVIDIA GeForce 8400M GS as your video card. Intel Core 2 Duo T9300, T9500, and T8300 require a selection of 256MB NVIDIA GeForce 8600M GT as your video card." Of course, said message has since vanished, but we'd wager that it's only a matter of days (hours?) before Dell finally gets with the program and gives its 15-incher the same treatment the M1330 and M1730 already received (not to mention the M1530 in other corners of the globe).
[Thanks to everyone who sent this in]