Blackberry Security Too Good?
The move by Saudi Arabia and India to challenge the use of the Blackberry on security grounds points to the strong security that the Blackberry has. The Blackberry was one of the first smart phones to employ a good encryption system, which makes transmissions unreadable by all but the intended recipient.
This is good for the parties to the communications, but obviously hampers the work of the police and the security services of a country. Terrorists and criminals can communicate undetected.
The US government had the same problem initially, but since then have worked out compromises and solutions. For a good summary of the issue, check out this article.