Tascam has launched a dedicated pocket recorder for the guitarists, GT-R1. It records MP3 and WAV files on any SD cards - the package includes one piece of a 1 gigabyte card. USB 2.0 is also supported, and charging its battery is also done with this connection. On the input stage it has a low-cut filter and a limiter to protect your recording, and built-in is a stereo condenser microphone that performs quite well. All of these are standard features on any recorder but here come the guitar-oriented goodies: amp simulation and effects, a small drum machine, and a pro-like overdubbing facility. It even has a guitar and bass canceler to perform a karaoke show with any hit you have. Price is around 200 euro, check the details here.