At the same time YouTube started (2008) offering 720p HD videos.
I also upgraded OS X to 10.5 Leopard, 10.6 Snow Leopard and in the end to 10.7 Lion. Along the way I upgraded it to 2GB RAM and gave it a fantastic boost by replacing the HDD by an Intel 320 Series SSD. In January 2007 I bought my first OS X device, a white 13.3-inch MacBook, running OS X 10.4 Tiger on a 2.0Ghz Intel Core 2 Duo processor, having 1GB of RAM.