Can we use wireless keyboard & mouse on PS3 with minimum loss and delay?
I've searched on youtube, and i saw a lot of videos about this. But i don't think that methods would be healty.
Yes. To add a Bluetooth keyboard, go to Settings > Accessories > Manage Bluetooth Devices.
For a non-Bluetooth wireless keyboard to work, it would probably have to have its own wireless receiver that would plug into the console via USB.
It also supports USB keyboards. From page 31 of my PS3 owner's manual:
Unfortunately, it looks like there aren't many games that natively support keyboard/mouse. I did find the Eagle Eye, a third-party adapter that allows you to use a USB keyboard/mouse in lieu of a controller regardless of whether or not the games supports it.
Although you can use a mouse and keyboard, you can't play games with them. They are very much limited to configurations and forms. The browsing becomes much better as well.
A little tutorial on the functions I've found with a keyboard in the browser:
Swap windows: Ctrl+↑, Ctrl+↓, Ctrl+←, and Ctrl+→
Previous/Next pages: Alt+↑, Alt+↓, Alt+←, and Alt+→
Unfortunately, I haven't found a way to use a keyboard in a flash game. Still looking though.