I hate it when people resurrect old threads, but ...
I play Trade Wars 2002 on my Android often. There are several Trade Wars 2002 servers running online. Rather than connecting to them via dial-up, you connect to them via telnet. It's the same game from way back, so you're not going to get the graphics and sound that Android is capable of, but at least you can play the game.
If you're interested in playing Trade Wars 2002, get the ConnectBot telnet client off of the Market. Then, Google for Trade Wars 2002. I play on ICE9 TWGS. I'd post URLs, but I'm too new to post them.
Of course, you can connect from just about any computer as well.