Hi guys! I want to tell you something I'm noticing lately.. Is normal to have just 100 Mb. of free RAM not having a lot of aplications running background (from 8-12)? I'm on iOS 4.3 not jailbroken and after a normal day usage I notice that.. I've closed all applications and rebooted and I get 350 Mb.. I think this is a problem.. iOS can't use 160 Mb, can it? And I've installed some applications that let you see the processes and I only see 503 Mb of RAM when should be 512.. Anyway, 100 Mb free RAM is too few for a normal usage.. Please, give me some opinions and tell me how your phones behave with the RAM! Thanks!