Ah, I nearly forgot about this one, and having seen Keith Peter’s recent Silverlight experiments, it reminded me I should upload!
John Allwright, the UK product manager for Expression (and a really nice guy), was at my particles session at Flash on the Beach, and a couple of weeks later, he’d converted some of my code to Silverlight!
It seems to run pretty slow on my MacBook Pro here, but I had noticed that John was running it at about 100 frames a second. I slowed the second one down to more like 25 (close to the flash version) and it seemed a lot happier.
Version 1 [no longer available – sorry]
Version 2 [no longer available – sorry]
[UPDATE] Download the source code : silverlightparticles.zip [no longer available – sorry]