I had HiddenSMS Lite 4.0 installed on my 32GB, 3GS with IOS 4.1 and baseband 16.15.00. I have had considerable trouble activating it after this last jailbreak with Redsn0w and unlock with Ultrasn0w 1.2. Every time I try to activate it with my order number and license, I get the following: "No activations available for the license. Please, purchase new license or contact Kandox s.r.o." It shows that 1 license is activated. I paid more for this app ($17) than its currently listed price of $14.50. No one from Kandox will respond to my e-mail. This company sucks. Has anyone else had this problem? I do not recommend that you purchase this app.