This story at pcmag.com posted yesterday announces that Verizon has relaxed their policy on using EVDO-enabled phones for high speed wireless access through your laptop. This means DUN (dial-up networking) is allowed through your Treo 700w. The story claims that this is not yet possible with the Treo 700w, but that is not entirely true.
June Fabrics has a product called PdaNet that allows this to happen. Their software is just $34 and it works great!
Now if they would just relax their EVDO usage policy a little…