Came across this "new" mouse from Logitech while researching some new technology for a class: Logitech MX1100 Review.
The mouse is basically the form and shape of the MX Revolution minus the rechargeable battery, click-to-free-scroll wheel feature, and the second "fast scroll" side wheel.
The zoom slider button from the MX Rev is retasked as the DPI on-the-fly switch instead. The two side buttons from the MX1000 makes a comeback on this mouse.
Other than that, this is the only review that mentions that there is a battery LED indicator. Other reviews have said that the DPI switch doesn't have a LED indicator (like on the G7), but I haven't read the ET review in full to know if they make any mention of that feature.
Logitech says the 2 AA alkalines included with the mouse should last about 9 months. Somehow I doubt it'll last 6 given any moderate to heavy gaming (or graphics work).
Lastly, it's priced at $80 (retail). You can probably find it for cheaper on NewEgg.