i was thinking the same thing as ryan00davis ... that seems very practical .. plus the instant update after a call is way cooler
another suggestion ... an option to display how many days are remaining in your billing cycle either by pulling the date from the sprint website or just entering it in settings ..
also .. i dont know if this would be overkill for a such small effecient app but ... being able to use custom fonts and/or some type of layout control or skinning could be pretty awesome for incorporating it into sleek today screens ...
in any event ... great great app ... ill be religiously watching for an update/fix ..