[dan_sim]

This is a general point of view but I don't see the perks in using any RIA technologies (Flash or Silverlight) when javascript librairies are available everywhere (and I'm talking about jquery). What can you do with silverlight that can't be done with jquery?

I didn't try the app (because of silverlight) but I really like the design. Is black the new blue?

[stormideas]

For me personally I was able to build colaab faster and more enjoyably using Silverlight rather than jQuery (which I love and use a lot in other projects).

Of course this is of no matter to the end user, but where it does have impact is that hopefully I was then able to spend more time working on features that add value to the application, thus benefitting the end user.

There's also some area of the application (like commenting on videos) which would have been really hard to develop using just javascript.

In terms of the design there's definetely been a trend towards darker colours. I love the style that Adobe have used for products like Photoshop Express and this was definetely an inspiration.

Thanks!

[dan_sim]

That's a great answer. I like the "I'm working with the best tools I know" instead of "I'm working with the latest tools to be part of a trend".

Working with tools with which you're the best makes great applications... as long as you keep updating your toolbox.