The iRig Mic Studio is a large-diaphragm condenser USB mic which comes with free software including models of the Neumann U-87, Groove Tubes VELO-8, and AKG D20 mics for the VocaLive app. Other bundled software includes Cubasis LE, T-RackS CS Classic, and 25 credits for use in AmpliTube, T-RackS and SampleTank. More information on the included software is available from IK Multimedia.
Applications
It is very good for recording music as well as podcasting using an iPhone. Its compact size lends it well to any type of mobile recording.
With its high max SPL of 133dB you can record just about any source including electric guitar amps.