Griffin has released a free iPhone application, iTalk Recorder (App Store Link), that lets you record audio with your phone.

iTalk’s simple user interface lets you start/stop, choose Good/Better/Best sample rates and manage your recordings, all with one finger. You can use iTalk to record on your iPhone or 2nd generation iPod touch.

They also are offering iTalk Sync (App Store Link), which you can run on your Mac or PC to transfer recordings from your iPhone to your computer via Wi-Fi.

Features:

• High-quality handheld recording using your iPhone or iPod touch
• Easy, convenient user interface and controls
• Drag & drop wireless file transfers to your computer
• User-selectable 11.025 kHz, 22.05 kHz, or 44.10 kHz sample rates
• Free!