[rjzzleep]

i hate to be that guy, and without actually trying to start a flamewar or "who's better", I find it really interesting that americans are so great at marketing things, the german stuff works, but usually looks crappy. here's a CCC talk from 2011 on the topic [1]

you could observe the same thing when the ccc guys had their first gsm phones. Someone just showed up with a base station in the trunk of his car. compare that with the huge buzz that went around the same thing at defcon a couple of years ago. The defcon truck definitely looked WAY cooler.

but on topic what's actually really scary about this is that even newer smartphones would allow sim exploits to roam free. contrary to what you may think it's not just old phones.

[1] http://events.ccc.de/camp/2011/Fahrplan/events/4427.en.html

EDIT: while technically not exactly the same as opensimkit here's an answer to the why question posed by jacob appelbaum. I suspect the same applies here(and it's not really a bad reason either)

https://mailman.stanford.edu/pipermail/liberationtech/2013-J...

[kalleboo]

The CCC talk looks cool for digging into more of what's possible as well as actually building their own serial interface, but the DEFCON talk is more interesting from the perspective that they actually got their own virgin SIMs and implemented their own app.