Max Sprite Sheet Size for iPhone?

I’m testing my game (WOOHOO!) on multiple devices now. (2d non-arcade game) It works great on the iPad, but the iPhone seems to not load all the graphics. I’m thinking its because the graphics are in a large sprite sheet. I read that iPhone only accepts sprite sheets up to 1024/1024 (mine is 4096 x 4096)

Is this still the case, or with the iPhone 5 etc are they allowed larger than 1024?

Thanks!

Finally found the answer:

Supported sizes are:
iPhone 3gs / iPhone 4 / iPad 1 / iPod 3 / 4 : 2048x2048
iPad 2 / 3 / 4 / Mini / iPhone 4S / 5 / iPod 5 : 4096x4096

Btw, you can import texture at 4096x4096 and turn mip maps on, this would automatically use smaller resolution texture on older devices.