Namco Museum DS hands-on at Gamespot.

"Namco Museum DS is a traditional collection of a handful of Namco's 1980s arcade catalog. The company has had tons of great hits over the years, and on the DS, the emulation seems pretty good so far.

The version being shown at E3 contained Galaxian, Pac-Man, Galaga, Xevious, Mappy, Tower of Druaga, and Dig Dug II on the classics side. A version of the four-player Pac-Man Vs. is also available, and can be played using one copy of the cart. Demo versions of the classic arcade games can be sent wirelessly, as well."

Full Source: Gamespot