WOW the G-70 is just plain AWESOME! Check out this new video demo on Roland's website. He demostrates the Guitar Mode. Holy Sh@t!!!!!!! Blew me (a guitarist) away! All I can say is yeah baby. I have a feeling I'll be buying the Roland E-60. G-70's out of my price range (otherwise it would be here in my home). Anyways, check out this new video.
http://rolandus.com/products/productdetails.aspx?ObjectId=656&ParentId=18

It's the fist video by: Ed Diaz.
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GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.