I have a strong appreciation for some of the earlier Sony engineering.
It legitimately impresses me what people were able to do with such small mips machines like the PS2 and PSP.
The software design for things like the PS3, the way gameOS is how elegant the debugging and remote capabilities are. The beauty of the XMB uncompromising functionality and performance.
And more.
The PSP is really incredible to me. What a machine, especially for the time but even today it has merits that others don't. When fully unleashed to developers, both professional and hobbyist, these machines can produce works that impress.

PSP never fails to impress me. What a really cool device. Can't believe how much it can do on that little MIPS processor.