Well, as cool as it was to have the web on my phone, I have canceled the service.  We mostly use the messaging, which I retained.  I also dropped the number of minutes on the plan, as we rarely make any actual voice calls.  By doing this, I cut my cell phone bill in half, saving around $70 a month.

Of course, this also means I no longer have email on my phone, but I do still have the messaging which my wife and I use all the time.