If you have to pay $30 montly for data charge, then why do you need to use wifi? Can't you just use 3g?
I guess I'm the odd man out -- I live in a small town in central PA. VZW provides 3G and I have Verizon DSL with WIFI. When I had my iPhone I used my WIFI because AT&T 3G was not available only Edge.
Now that I have my Driod (rooted and OC) I have great speed with 3G and have WIFI disabled. Since OC my speed has increased so I'm happy.