[marbletiles]

so if someone could make a 68030 as efficient as an i5, I could have a PowerBook 170 that would run for a week on a charge? Yes, please.

( I'll need someone to knock up a Twitter reading client in MPW too, pls)

[phil]

Heck, why not go even further back?

http://atomsandelectrons.com/blog/2010/04/apple-t/

[zokier]

Modern MCUs are relatively power efficient, and certainly are available in 68030s performance region. But their architecture might not be very suitable for general purpose computing.