On the Palm Pilot, the PIN was basically the only way to provide any sense of security. However, the PIN would prove to be easy to bypass. Today's mobile devices provide individuals and enterprises with a collection of security controls from which to choose from to secure mobile information. The RIM BlackBerry offers the most granular security controls available.
The mobile wallet will be Part 2 of "The Great Mobile Convergence." Do you really need to carry your mobile phone and your wallet? Today, yes (well maybe not in the Far East). But tomorrow, no.
Misplacing your wallet these days, as opposed to your Palm Pilot in 1996, has a bit more impact due to rampant identity theft and fraud. Luckily, we have better security controls to protect information now than we did in 1996. During the transition years, while we move from a wallet filled with credit cards, cash, and reward program cards to the mobile wallet, you will hear much debate over the security of electronic monetary transactions.