Netgear DG934

[#1]

Can anyone tell me whether the above router as supplied with Sky Broadband is locked in some way to their own service or can it be used with any provider?
I understand that the DG934 is just a repackaged DG834.

[#2]

AFAIK it's locked (but not necessarily unbreakably locked) - but routers are very cheap these days.

[#3]

I believe most of the Sky routers are Netgear DG834GT's with custom firmware.
There's a good market in them for Be and O2 customers as they work particularly well with their ADSL2+ service (due to compatible chipsets between router and exchange equipment).
Unlocking them and reflashing to standard firmware is easy but not 100% risk-free - Google is your friend.
My genuine DG834GT worked very well with PlusNet and took 2 minutes to reconfigure for Be where it works superbly.