Having bought one of Tesco's Hudl tablets a couple of months ago, I've been using OruxMaps and Locus for mapping and navigation.
I had noticed that it managed to find a lot of satellites, and I put that down to it using a receiver chip set which must feature more than the 12 channels of my SiRFStar III equipped PDA. However, playing with another app, GPS Status, last night, I noticed it was reporting Satellite Vehicle IDs greater than 32. I guessed that it must be receiving GLONASS too, so I checked the GPS Status user manual this morning, and yes, that's exactly what it's doing.
I shouldn't really be surprised, since multi-system chipsets have been around for some time, but it was a nice surprise to find that my cheap Hudl included GLONASS; Tesco's spec doesn't mention it, but then it just says 'GPS receiver', with no further details.