I would say GSM security is still better than nothing. The problem is of course that only tha radio link is encrypted, not the connection out into public telephone network.
As I remember from discussions with a GSM encryption programmer (which I posted to this list months ago) GSM is secure enough to prevent real-time decryption, as keys are changed frequently using another secure protocol (A8 I believe). GSM encryption is only supposed to make people like Princess Diana more secure, that's all. This was enough for Pakistan to temporarily shut down Motorola's GSM network in Karachi last February, until they discovered they could intercept calls simpply by sitting at the base stations where they're decrypted... Rishab
Juri Kaljundi, DigiMarket jk@digit.ee