IPhone 4 silent button wiggles. Is this a problem?

I've had my phone for 3 weeks now and I've noticed that the silent button wiggles a bit when I touch it and feels sorta loose in it's on/off position. It's also gone on silent before without me purposely making it that way. Is this normal for the iPhone 4? Or is this a problem? I have a warranty or anything on it.

It is normal for the iPhone. Your button has just become a little loose and will not be a problem. Do not worry, it will not fall off or stop working. If it starts to not work then take it to an Apple Store.