TrustedReviews has posted a review of the Logitech G7 cordless 2000dpi Laser Mouse

The G7 design is very similar to that of the MX518, but oddly enough some features have been removed. But let’s start at the beginning - the new laser sensor. The G7 has a 2000dpi sensor, that’s 400dpi more than the MX518. However, it’s not practical to use this kind of resolution for Windows work, as the mouse goes all over the place.

Logitech G7 Review