I frogot my Iphone 4 passcode! WHat should I do?

I did not ever plug it in my computer to backup or sync or anything. How do I get into my phone again?

Take it to an apple store

I'm sorry but the apple system is so simply secured that you can't access anything without resetting the phone. If you have nothing backed up there's no way to get it back on the phone. It will be reset to factory settings.

1.Download the latest iTunes on your computer/laptop
2.Connect your iPhone 3g on your Computer with your charger
3. The Computer Will Read the iPhone and It will Say Restore
4.Click That
5. IPhone will update, and every data of his iPhone will be completely erase/deleted.
6.It may take 10-15 minutes, just wait
7.Done! New iPhone