I have an a500 with ks 1.3, but I just scored a 1.2 ks off of ebay for $0.99. I know that there are some old apps that only work with 1.2. So, should I switch out my ks 1.3 for 1.2? I don't have a hard drive and don't see myself getting one in the near future. Are there apps that only work with 1.3? I could get a rom switcher, but I really don't want to get one if I don't need it.