What is the difference between WAP & GPRS?

With GPRS phones rolling out soon, I'd like to find out why should anyone bother with purchasing a wap-enabled phone now, and not wait out until the 3G phones come onto the market?

Also, I'd like to find out what is the essential difference between WAP and GPRS.

I hope someone can help me out on this.

Thanks

rgds,
Karen Anne

WAP will work over GPRS. GPRS allows WAP to work in packet mode instead of circuit mode. (And it will be much faster as well.) WAP also works over existing packet technologies such as CDPD, and other 3G technologies such as EDGE and WCDMA.