Why you should get a 9790 over a 9900
I wanted to get this off my chest because whenever someone asks what blackberry to get, everyone just says 9900 when it has problems itself.
So firstly, they both have the same battery. Because the 9900 has a bigger screen, and a 1.2Ghz processor, the battery doesn't last long powering it. On the other hand the 9790 has a smaller screen and a 1Ghz processor and it can stay on for a good long set of hours. The processor isn't even a disadvantage, who needs more than 1Ghz?
Then the camera. The 9790 has autofocus which is a big bonus when using the camera for taking pictures with your friends which is common. However the 9900 has 720p video recording. Which will you need more?
Then the price, the 9790 is a fair amount cheaper.
So what it comes down to mostly is do you want a bigger phone that runs out of power quite easily, or a smaller phone that lasts a solid amount of time. That's the main thing here, the rest isn't really anything big.
I hope you all consider this next time deciding or giving advice.