Cisco Security Intelligence To Go v1.1
Cisco Security Intelligence to Go v1.1 (otherwise known as SIO To Go) is a nice pocket companion that keeps you updated on breaking security news. It aggregates up to 16 security news feeds in a single screen, which can be a bit overwhelming at first glance. When you find an article of interest, the app opens up a Safari Web browser on your phone so you can read the details.
There is a similar iPhone app called iAdviseMe ($1) that will pull security alerts from a variety of public sources, but Cisco has a better designed app. This is largely due to the online reputation scores that it compiles as part of its SenderBase service (which the company acquired from IronPort systems in 2007).
You can also quickly see if you are dealing with a spammer or phishing site. You just enter the domain name in the app, and SIO To Go will offer information such as the domain owner records, any suspicious e-mail or Web traffic, and other data that can be useful to determine the provenance of the domain.