Here is a $20 solution for basic universal IR remotecontrol for the PS3!
http://www.amazon.com/BluWave-Infrared-Remote-Playstation-3/dp/B000R5H7KE
The following quotes are from reviews (Terrell T. Gibbs & ski_fiend on Amazon)
"
Nyko remote is only able to support the commands that you can execute with the PS3 controller, and does not provide some of the additional commands available on the PS3 bluetooth remote. So no power key, angle key, or eject key. But it does emulate all of the digital controls of the PS3 controller (i.e. everything but the analog sticks), which makes it fine for controlling the player." end quote.
'This remote's dongle does the job in letting my Harmony control the PS3. There was one problem that almost led me to return the remote however, and I wanted to mention the solution here.
Problem (for Harmony remotes):
On the PS3 XMB (Cross Media Bar), the directional buttons would move the selection several spots for each key press. I read several posts and tried teaching & re-teaching the Harmony. I tried teaching using the "Raw" IR learning but that would slow down the response from the PS3 to each key press.
Solution:
Within the Harmony program, go to Devices->PS3 and select "troubleshoot" under device options.
Select "Show me more problems" (last choice).
Then select the choice "PS3 doesn't appear to receive every command correctly," and the select "The device responds too much to some commands (for example, volume up increases the volume too quickly)."
In the screen with the radio buttons, select '0'.
Save & update the remote and everything the directional buttons will work perfectly." end quote.