Wirelessly posted (My IV to the Net: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0) BlackBerry7250/4.1.0 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/105)
I also carry around a calling card although I had been thinking of removing it from my wallet since I have not used it in the 5 years I have had it in there.
After reading this I'll keep it in there, just in case.