>I like the MVVM pattern for a lot of reasons, but in regard to speed, I think that is probably a function of how the viewmodels are structured and the patterns used within them. Ultimately, whether you are using MVC or MVVM you are going to pull a subset of data from the backend and that is where the speed comes in. I'm leaning strong toward webservices from what little I know so far, so the calls will be a little different from the MVC addressing. Not sure what the tradeoffs are there. Again, I suppose that depends on how its designed and based on who is using what it seems either one could work very well ( if you were John Papa or Scott Allen designing and coding it :-)
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>The user's perceived speed in the browser will be based on server trips, so using SPA or SPAish Ajax calls makes a lot of sense to me. Also, the idea of cached objects being used when available seems important.
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>Have you done Julie's latest Pluralsight course on enterprise EF design yet? I'm still chewing that over but it did answer a lot of questions I had earlier about how all this stuff fits together.
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>Still don't have it all half figured out but I know I'm having fun :-) and today an old client surfaced after 5 years and I may even get a chance to do a real app with it. That will get the juices flowing :-)
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>>There are hundreds of javascript libraries. I'm not sold on Knockout.js. People who know web lots better than me say MVVM is too slow for the browser. But I haven't looked at it. Still so much to learn about the tools that I am using. (MVC4, jquery, jqueryUI, css, javascript, wijmo)
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>>>I was pretty suprised when I started hacking around with Wordpress how much it was a PHP animal. Didn't really like it. (though I really like wordpress) For the reasons you state I see a number of people recommending learning just enough PHP to figure out where to plug in jquery to add on to Wordpress if that is the goal.
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>>>Javascript seems to have a very dynamic community moving it forward and the modularity it allows gives you some real choices in how to implement pretty much anything you can imagine with HTML5.
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>>>I think there is a consensus building and it is noticeable over the last year.

You have worn me down about Pluralsight. I have signed up for a month, with source code, specifically to take John Papa's class and related classes in jquery et al. The Coursera history class has put me in learning mode and I am grabbing the iron while it's hot. OK, that came out wrong, but you get the idea ;-) I am eager to learn new things.

Last week I was in New Orleans for a health industry convention. It was huge, 35,000 attendees and an additional 15,000 representatives from vendor companies. Huge enough for Bill Clinton, James Carville, and Karl Rove to speak. I was told it was one of the three times this year the Morial Convention Center is sold out in its entirety. One of the booths near ours was mongoDB, attended by two people, a comely blonde sales VP and a guy whose badge said he was a business developer. Their product is an open source non-relational database. He was all of about 25 and I suspect he is behind the whole ball of wax. Charles, I think I am officially getting old ;-)

And yes, I did get the T shirt.