Brian BeamMacworld

Brian Beam is a software designer and database/system administrator at the Greater Kansas City Community Foundation and the owner of web development firm CommandB .

Moodagent for iPhone

With updates adding new features, this playlist-generating app -- which now comes in paid and free versions -- is as impressive as before.

Voice Band for iPhone

It can take lots of time, patience and determination in order to produce a listenable song with this app, which transmogrifies your voice into the sound of various musical instruments. But Voice Band definitely puts a unique spin on mobile music creation.

Mobile Active Defense for iPhone

This app promises to help guard your iPhone from malicious mail, and its approach is pretty straightforward. Still, our tests were unable to indicate just how much safer your e-mail is with this $17 app and service. Still, a free version lets you try Mobile Active Defense for free to judge for yourself.