The problem with the iPad is both hardware and software related. Anything work related you can do on an iPad can, in most cases be done faster on a Mac. No question. - Dan Counsell
This is probably the most common idea behind a the majority of iPad articles, whether it can truly be a device that replaces your Mac.
Well Dan Counsell (Founder of RealMac Software), has written his thoughts on it, and I thought it was worth sharing.