You can see from the included pictures above that the MX1000 certainly has a slightly larger footprint than the G7. The fluidity of movement of the G7 can only be explained by the inclusion of better contact material (Polytetraflouroethylene) on the mouse pads. It's nice to see that Logitech have discontinued with the somewhat 'tacky' paper based stickers of the MX1000 that could flake off, in favour of moulded logos.
The battery condition display has also received a makeover. In the top left picture you will see that the display has an orange effect added; this is actually the adjustable DPI status bar which is controlled 'on the fly', by pushing the two button directly below the scroll wheel. The G7 allows you to adjust mouse sensitivity without having to go into the Setpoint console...How cool is that? After being allowed to stand idle for around five (5) seconds, the DPI status bar then changes to show you the battery status in the usual Logitech flouro green colour.
You can see from the upper right hand pictures that the on/off button still resides on the undercarriage of the mouse (top right hand corner of mouse); but instead of having contact points for the charger cradle, it now has a rechargeable battery slot. This makes for a refreshing change from the MX1000, in that if the contacts were dirty or dust ridden, you'd have to clean the pole pieces before the battery would begin to charge. Logitech have given this plenty of thought, and as such, included two Lithium Ion (Li-ion) battery packs which don't retain charge memory to ensure your gaming experience is as unhindered as possible. Further, Logitech states that the batteries are good for 10 hours solid gaming before requiring a charge.
You will also notice that the G7 has lost a button from the side. The button missing is actually used to flick through open tabs and make a selection courtesy of the included Setpoint software. To be honest, I never actually used this button anyway; but to those who do, they find this a little annoying. The above picture shows the distinct height difference between the two mice; those members with smaller hand span and fingers will love the G7 due to not having to stretch to access buttons.
One ergonomic feature that I felt Logitech should have retained when designing the G7 is the inclusion of the moulded rubber inserts on the side of the MX1000. Due to the glossy moulded finish of the G7, if you were to play with greasy or sweaty hands it becomes a little awkward to control due to finger slipping. Now that we've had a look at the mouse itself, let's look at the new charger.