BTW, I like the idea of the home button being used to reject the call. It would be nice to see that offered as a user-selectable option.
Anyway, hate to resurrect an old thread here, but I actually bought EZDecline off Cydia and problem is, the app doesn't WORK! (I'm using a iP2G, running 3.1.2). I've tried uninstalling, reinstalling, etc, but no luck. The 'slide to unlock' message still appears when locked.
Worse, the developer hasn't responded to my e-mail, and apparently doesn't maintain a web-page offering support, etc. My only chance of getting the $0.99 back is filing a claim with PayPal (and no, it's not the money, but the principle: the idea of a dev who potentially can sell a buggy non-working app as a passive income stream just rubs me the wrong way....).
So far, I'm not really impressed with Cydia. I've sent an e-mail to saurik, and we'll see what happens.