I play a game called Goal United (Football game) and spend a lot of money in that... I have said about Goal United before on the forums because the way it is setup is Superb and iGP would gain if one of the Dev's signed up and played it for a few season to get the idea on how it all works..
1000's of things to do away from the main football matches from - Training your team every day, giving extra boosts to the actual players using a card system, Custom logo's, Stadium and facilities with levels that bring better money in to the team.. Friendly / Practice matches that you can set up when you want... and another 999 things to do....
Well... They have just gone in to the GP route and it's called uGP... Great hey O_o
The good news for iGP is that it is only for the iPlop at the moment and they are not looking in to the other markets just yet.
The bad news is that they have a lot more money than iGP, more staff and they already have Goal United to draw from..... and not to mention the 100.000's of players WORLD WIDE from GU who they have already hit with E-mails and through the game...
I did go on their FB page and name drop iGP to a few who don't have iPlops. ;) lol
http://www.unitedgp.net/