https://www.gpstrackthis.com/GPSTrack...em=SpyLamp.jsp

I just saw this. Any one have any experience with this brand and or other gps trackers? URL's to company names and products would help.

Would be nice to be alerted if the bike was stolen so I can get the get the spare chain and have a motivating chat with the thief.

May not be available in the US. Requires a SIM card, and the US mobile market is jacked up and stupid and nobody wants to sell service without tying to their devices.

actually, the sim makes it usable in the U.S., just sign your bike up for your family plan, get a free phone, pop the sim in the taillight.

OK, cool. The last time I got a phone that wasn't a cheapo $20 on a pay-as-you-go phone, it was probably 6 years ago and no US carriers to my knowledge used SIM cards back then.

Still way more than I want to pay for a phone (even when I had a 300 minute plan, I never exceeded 8 minutes a month, so now I use a $5/month no-plan phone) but for this purpose it might not be too bad.

I would think that a vibration sensor would false ALL the time. Unless you park it in a bike locker, don't people jostle the bike all the time? Anyone with another bike locked to the same rack, or just someone who bumped it or was screwing with it would send you another SMS message.

There are prepaid GSM services in the US that use a SIM. AT&T's gophone service would work, and T-Mobile has a prepaid service as well. There are also probably some small prepaid carriers that could work for this. I used to use AT&T gophone, and if it was just using SMS (and not data) it sounds like you could buy the bare minimum of a $100 (less with some online phone card sites) lasting a year, for $8.33 a month. At $.10 a SMS (and pinging the location on this thing will take 2), you could check the location 41 times month, unless it consumes more (maybe you get charged for the AGPS?) So possibly you could use this for theft recovery exclusively at semi-not-ridiculous rates.