Can i make text ringtones on my iphone 3g?

My friend sent me a ringtone on my iphone and it will play and all but I wanna make it MY ringtone! How do I do that?

Do you know how much an iPhone 3G costs?

Is there a way to forward text messages on the iPhone ???

The2g has a plastic back cover? And the 3g had an alluminon back cover? Can you get a 3g back cover what would fit a 2g so it...

I have the iPhone right now, and have had it for almost a year. Should I get the iPhone 3G? What are all the differences?

Where can I get free ringtones texted straight to my phone? I have a verizon rival.. Helppp (:

Does anyone know if you can make a ringtone come on for a new text message besides just the ring?

Can Anyone tell me how to set a ringtone on my iphone ? so its not a tune from the phone its a song of my choice that I do...

Does anyone know about the camera quality of the new iphone 3g.Heard it is bad.It is just 2mp rt? Is there a flash in the iph...

I want a ringtone for my phone like a song. What is the website called where u text a # and then they send the ringtone back?