Battery life seems "less bad" than I thought, but I still don't regret getting the extended battery. I'm just envisioning travel - perhaps using Wifi in the airports, and using the device wireless-off on the plane. I want to make sure my battery isn't dead by the time I get *off* the plane, or I won't know what hotel I'm staying in.
Anyway - I sent emails to both Vaja and Sena suggesting that they might want to consider making a version of an X50v case with room for the extended battery. Vaja gave a standard "we'll keep that in mind and let you know when we have an X50 case" response. Sena sounded more interested in the idea. But we'll see!