My iPhone 3G got virus or some what spyware?

first time use of my 3G iPhone it never crash.
But after i installed lots of apps from apps store(canadian) and now my iPhone get crashed frequently! (~_~)
any idea ..appreciate!
I’m not installing all the apps from apps store!
How may i know exactly that one of those app is giving me some trouble?
tell me more!

You need to get rid of some of those apps man.same thing happened to me.

Oh and you MUST always RESTART your ipohone after any single app install(if you install 30 apps,you must restart the iphone 30 separate times each time you install another app.)…….get it?

If deleting or restarting after installs dont work,try to back up your data with itunes and reinstall the firmware.

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