As of yet no. However the next update Lumia Black or whatever they are calling it will include that function as it is included in the Window OS update that will be part of the Lumia update.
If you don’t mind messing around you can get it now by creating an account (or logging in with your Microsoft account) here http://apps.windowsstore.com/default.htm
After that download this http://www.windowsphone.com/s?appid=178ac8a1-6519-4a0b-960c-038393741e96
Then follow the instructions in the app.
As a note, this will only get you the Microsoft Windows Phone firmware update and not all the stuff Nokia will add, however it will allow you to do what you ask, and when Nokia release their update you will then get that too, you just basically get a bit of it early.
More details here http://dev.windowsphone.com/en-us/featured/update3
You would be doing the second prerequisite. Don’t worry about the developer bit they don’t expect you to make anything its just an easy way to get the update.
Hope that helps.
