Ha you're lucky!
I got a Windows Mobile 6.5 device... no one wants to support them anymore! lol
On the topic of compatible phones to test with.
iPhone is compatible, this will cover the iOS markets. You can also use the iPod Touch or iPad. I've got an iPod Touch and iPad so I test with those.
I'm planning to get a Samsung Wave 525 when I have the funds, they come under £70 in the UK on pay as you go plans. This will cover Samsung's Bada OS.
You can test Meego on a Nokia n900 but the phone is expensive, and you have the manually install Meego to it yourself. Because no phones ship with it installed yet, I am going to wait for the Nokia N9 to turn up which I understand will be the first Meego phone. But if you want to get your games and apps ready for Nokia's release then getting an N900 to test with is the way to go I think. With brands like Intel and Nokia behind Meego, I'm sure it will find a market fairly quickly.