I was just speaking briefly with David Höhn (another of our Agile guru's) and he showed me his extended battery for the Vodafone 750v. It reminded me of one of the reasons why I like my Palm... Accessories...
They are loads of them for the Palm due to the many Treo's around with the Palm OS... The one I like best, apart from the extended battery, is the Sync-N-Charge Cable... It's a massive pain not being able to charge with the supplied cable, but hey... o and don't be put off by the picture most show of the cable, it really does have a Palm connector and not a mini-USB.