i am on dodo, a realy cheap and very nasty service
On mint 6 I can get (connected) but I cant browse, mozilla just sits there forever.
Huawei is the modem.
Ubunt is the biggest but its anal retentive lack of a root login swings me to mint with remastersys
I am also a big fan of pclinuxos
with either I can get a remasterable distro that grows with me