Wow that is pretty good. What do you use that machine for these days?
It's on 10.5.8 with 2GB ram and a 128GB mSATA3 SSD (via a IDE<>SSD adapter case). So, it's no speed demon but it isn't slow either. I mainly use it for web browsing when out at coffee shops. It has Airport Extreme, but I bought a PC wireless card (not shown) that allows me to connect to 5ghz networks (such as what you'd find at a coffee shop).
At home, light web browsing, word processing (Office 2008) and some light Photoshop work. It'll run CS4, but CS has a lighter foot print so I use that.
I'm in the process of cleaning up my garage into my personal space. When I get done I'm going to see about using it as some sort of terminal to access my book collection (which I intend to put into a database). Bluetooth is still usable, so I can also stream music from my NAS.
There's a whole other PowerPC community here on MacRumors dedicated to keeping old Macs viable, so web browsing is still possible if you're wondering about how I can still do that.