just got off the phone with the account services (retention) department...i had the MM-A920 previously and had a "retention" plan that included a $20 sprint power vision tv pack. i told the rep that my device doesn't support sprint tv and asked for the lowest data plan.
he said $15 and it includes pic mail. i said i can't send mms pic mail, is there anything lower? he said no. i'll call again to see if i can get someone else to lower the plan to $10...that seems fair, $5 is just crazy.
he also gave me m2m free (normally $5)
i'm sure i'll have to call again about my plan in january when the GPS becomes available...