The recent PlayStation 3 firmware update has made many improvements to the PlayStation 3 System Software, and especially the Internet Browser. It’s taken some time, but Adobe Flash Player 9 has finally been integrated into the PS3. Some would argue that it’s a little too late as Adobe Flash Player 10 is now available to download. According to IGN, "Sony has actually been working on Flash 9 support for quite some time — as far back as late last year. To get it running on the PS3, Sony ended up customizing a separate Flash implementation that was provided to it by Adobe."
IGN also reports:
"For a sense of how computationally intensive some areas of Flash 9 can be, you need only consider this little bit. According to Takase, the PS3 implementation of Flash-based playback for H.264 videos makes use of an SPU. This allows for loading up of web pages to be separate from video playback, improving framerate.