If you fancy trying out a new game, take a look at MemorizeIt by XDA forum member heliosdev.
MemorizeIt is a game coded in C# and OpenGL ES 2.0 for your Windows Mobile device like the HTC HD2. Currently, the app has three categories:
The dev states that first start may take some time for thumbnail image creation. The images are taken from the storage card directory but additional .jpg images can be saved in a directory named ‘TestImages’ located at the root of the storage card.
MemorizeIt is currently in alpha and helisodev is looking for testers, so to sign up and for more information, head on over to the application thread._________