An SSL/TLS handshake requires at least 10 times more processing power on a server than on the client. SSL renegotiation attacks can readily take advantage of this asymmetric workload. Watch this video to learn how to easily mitigate these attacks.
The marriage of Pandora and the iPhone should be on the cover of People magazine. Assuming that the government doesn't kowtow to the corrupt recording industry and inexplicably shut down streaming radio, this app will provide you with all the music you could ever want for a very low price, and it even works over the EDGE network. Free through App Store.