To get the update, just tap on your Store icon - if you don't get offered the update yet then note that it's rolling out, it'll come in due course. If you're impatient (like me) then note that, as of now, you can also get v3.20.050 from Beta Labs as well, since the version offered there has also been updated.
From the Beta Labs page:
Update 20.12.2011 - Version 3.20.050
This version now matches what is being deployed commercially. Compared to the 049 beta version, there is improved update logic in this version so that you are only prompted once when upgrading from this release to the next one.
It's good to see the QML Store client now replacing the old Web Runtime-centred version. Although the latter ran significantly faster on Symbian^3 handsets, the new version promises:
- Easier navigation
- Improved product details view, for a rich and fluid discovery experience
- Quicker, smoother and more responsive than WRT client
Grab it now and comments welcome!