Are you looking for a portable I/O recording solution for your band? There is a new akai eie that is a professional input output audio/midi interface with USB hub.
Is there a difference between a portable and non-portable? There can be pros and cons. But a portable EIE with a good quality and professional surpass any non-quality and bulky EIE.
For on-the-go musicians, this would be one of the best you can try.