Site Redesign

I have had several clients recently approach me about redesign. Simple stuff. Sites have a certain fashion cachet and they want to keep up. The iPhone and smartphones are taking over the world and sites need to refect that they will be seen in the small screen.
There is much more though and this recent article  by Brendan Regan at Grock Now catches a lot of the good articles recently on the subject. Seth Godin's riff, Jakob Nielsen's notes and others all highlight that redesign is two things. Incremental and focussed on ROI. What do we want the customer to do on the site? And how is that going to make us money.