The latest is xxxx.xxxx.xxxx.12070 but you may have xxxx.xxxx.xxxx.11501 which is second till latest and will update when connected to Zune.
Thanks. I want them to apply the update while I'm still in store if it's not up to date. Last thing I want is to get back home, apply the update and find the fault returns.
With what Meeko said, should I be able to see the remaining charge in diagnostics which the latest update or not?