Ok Steve and asa.. here is the solution for you guys.. hold down the power button and start the game and after that your iphone gonna come to home screen and now start the game with holding home button and boom you are in the Game ;)
And download and enjoy Iron Man for Free : http://rapidshare.com/files/173187015/IronMan__v1_1_.0_.ipa
amazing game but other new releases like ferrari f40 dont run due to phone being jailbroken more and more offical apps are not working now like tv show king online non runner and brother in arms takes 50 seconds to boot on jailbroken phones 5 sec on unjailbroken