Games console - We got our wii 2 years ago, so 8 and 4.
DS or similar - DD1 got hers at 7, DD2 got hers at 5 (earlier as was always pestering her sister for a play on hers...I was actually v surprised when her Dad bought it for her birthday present)
Mobile phone - DD1 got one at 9. Is now 10 and a half and still on the first £15 she was topped up with. She got it because it was a hand me down from me and she mostly just uses it to listen to music and take photos. She has learnt some good lessons about budgeting her phone fund in the meantime, so will use it more carefully when she is having it on her when walking to/from high school etc. DD2 - doesn't have one as has no friends who also have phones. I have a second hand me down phone waiting for that time however.
Smartphone - I've just got one and my DD1 is now desperate for one. She may ask for one for Christmas and getting one would depend on whether it could be bought for WAY under £100 and if I could get one that would be guaranteed that you could switch off the mobile internet and use the home wifi instead, like my HTC can.
TV in own room (over my dead body...) Lol...DD1 got one at 7 because our childminder was getting rid of one and offered it to us. DD2 got one of the princess ones for Christmas that included a DVD player, because it was less than £50. They aren't allowed them on school nights and aren't allowed to disappear into their rooms for hours on end either, but it does save me from having to listen to lots of Hannah Montanna or Doctor Who.
Laptop - Neither have one yet...and long may it last. DD1 has a PC that my OH built from old systems that is not internet linked. She loves writing scripts and uses it to do her homework. DD2 goes on my laptop. Both are extremely profficient at using the computers and www.
Facebook account - We broke the rules and DD1 has one from age 10. Under the conditions that...I am her friend so can access her page, she uses it on my laptop when I am around to supervise, that it is linked to my email address and that I know her login and password. Working well so far, although I know a lot of MN's would be horrified by the thought.