guys..i m a newbie to iphone...just bought it yesterday...i notice that my data usage keep increasing even i did not use it...for example, i just resetted the stats..then i sleep the phone..after awhile i go check it, i saw few kb data in the usage...why ah?..anything suspicious?

off already..still have some download...few kb....nevermind la...since my digi wont give me bill shock..i just on my cellular data all the way..

guys..i got some questions:

1. i bought several apps (iTunes Malaysia Account). Let say if i wan to reformat my phone...after reformat i can still sync back those apps without any charges?

2. i saw updates for my games i purchased, if i click update, will the saved game progress be erased when upgrading?

3. i cant redeem some promo code although Apple just announce that those codes can be used worldwide(not limited to US).

4. Can i use iTunes to downgrade my IOS 4.2 to IOS 4.1??..my IOS 4.2 abit jaggy..eg: when opening Messaging, the animation seemed laggy(but not always), my Cut The Ropes seemed abit laggy too (on certain stage especially those which large gameplay area), when double click home button to show running background apps..