I'm also a big Line 6 fan who was going to buy AMPLIFi 150. Once I hoped the Tone Matching function would work by Bluetooth connection between the AMPLIFi and my iDevices, but that feature can work ONLY when your iDevices connected to the internet (by wifi or 3G/4G). This is an inconvenience/disadvantage (especially when we are playing at some places where internet not available), that also stopped me buying this amp. If Line 6 solve this problem, many people will be back to buy AMPLIFies, I believe.
