Looks like the UK Government is bringing forward the Warrior upgrade program with the first units operational by 2011. Lessons learnt in Iraq clearly demonstrate the need for a fully stabilized and more powerful weapon.
The following site provides a very good video presentation by the different contenders including the effectiveness of cannon ammunition on Soviet era APC’s.
The Lockheed Martin option will utilize existing components, which will no doubt appeal to the MOD because of cost savings. The 40mm submission by BAE however will bring a significant upgrade in fire-power and the innovative rounds save a huge amount of space when compared to a conventional 40mm shell casings.
Worth a look: http://www.defensenews.com/dsei/video.php?id=74
Who ever wins, the potential for fitting the same turret to other vehicles, such as CVT, will be huge.