On how important exclusive titles are this generation: Exclusive titles are important for console differentiation and will continue to be a focus for the proprietary studios of Sony, Microsoft and Nintendo.
However, I feel title exclusivity for other developers is less important then title differentiation. All three consoles have strengths, and I would advise [developers] to clearly develop with the console in mind, and I would stress differentiation within their titles.
This clearly poses a problem for smaller, more financially strapped developers who don't have the budget to develop what is in essence three separate games. My advice to them would be to really focus on the type of game experience they are hoping to provide for their customers and then pick the best one or two consoles that encompass the capabilities to deliver that experience.
On whether developers still benefit from developing exclusive titles: I think it is more advantageous for developers, especially the smaller, less funded ones, to focus their efforts on one console and deliver on a unique and innovative game experience. That will generate more buzz both in the media and word of mouth and excite retailers.
On console-moving exclusives to keep an eye on this year: Obviously for 360 we are hoping for a totally new and innovative Halo 3. I think Sony needs to knock one out of the park with a PS3 SOCOM and Metal Gear Solid. Nintendo has too many unique opportunities to name them all.