A marketroid term that I saw recently when perusing the advertisements in Forbes magazine while sitting on the toilet. Refers to the practice of conducting all business transactions, not just m-commerce, from a wireless phone, PDA, laptop, or any other gadget. It is basically an extension of e-business, only it leverages the buzzword "mobile" to appeal to stupid marketing types.
I think this is designed to appeal to businessmen too busy acquiring radiation from their mobile phones to actually manage their businesses. Among the catchphrases you'll soon hear if m-business takes off:
I'm sure the bullshit generator
is fully m-business