You have to love this take on Seaside from OSCon:
I'm having fun in this session, sitting next to Ben Bleything, and trying not to contribute to the sporadic chuckling and heckling about the voodooo magic of Seaside. This is definitely one of the more enjoyable sessions I've attended so far, but now that I've actually seen it in action, I really don't think Seaside poses serious competition to any of the major web frameworks. Too much voodoo.
Blaine Buxton was nicer about this than I'm going to be :) Here's my translation of what Obie Fernandez is saying: "It's too easy, I'm not seeing any suffering - how will I impress my friends if I don't spend endless hours at the keyboard???"
Get over it and try it out. Don't throw rocks because you think it looks like magic.