Very buggy, and one of the achievements appears to be impossible. It requires 100 captured cities, but there's only 50 on the map. Also I missed one of the enforcer achievements somehow.
Hmm, lack of mute button combined with really boring music. Also, the play more button really needs to be moved. I accidentally clicked it several times trying to go to the menu.
This reminds me of a little (44 megs little) old (latest version in 2002) shareware game called Gravity Well.
http://download.cnet.com/Gravity-Well/3000-7562_4-10009990.html
Anyone else see the similarities?