I ordered a Huawei E173 from amazon.com ($50), then went by T-Mobile to pick up a SIM card ($30)...installed the modem, started Frontline SMS and voila! I'm connected. I've just sent a couple of messages out and am waiting to hear back.
This is incredible software that opens so many possibilities. Thanks to those who've created it!
Congratulations! \o/ So pleased to hear that you now have FrontlineSMS up and running! And thanks very much for your kind words. Look forward to hearing more about how you use the software, so please do keep us updated.