Nokia Lumia 620 associated problems

Hey! I bought Nokia Lumia 620 a month ago. It really offers good performance. But two problems that I have faced so far are that firstly, apps are very low in number and that is a headache. .Apps are loaded into phone memory and one can't move any apps to SD card. I think there is no solution for this problem but still ask if there is any? Also, I have noticed that phone becomes very very hot even after small usage. Solutions? Thanks!
