Yesterday i saw the news, Dell's Latitude E6510 and E6410 have been coming out.
Dell released 2 new business laptop in the first quarter of the year 2010.

Dell latitude E6510 model, code-named Margaux, product code is PP30LA
DELL E6510 with the Intel i5 cpu and Microsoft Windows 7, the battery label shows 6700 milliamperes, wireless LAN, Bluetooth and ultra-wideband wireless communication connection.

Dell latitude E6410 model, code-named Rothschild, a specific code for PP27LA, lithium-ion battery with 4600 milliamperes. Configuration Intel core i5/i7.

My DELL D630 is old enough, the bettery has been dead for several month already, it is said that the installed RC version of Windows 7 will end of life this month. after that day it will automatic reboot every 2 hours. So, exactly its the best