^ You wouldn't regret it. It's a fully functional Linux PC with good gaming controls, keyboard, WLAN and 50Hz-capable display fitting in a pocket.
Btw., the testresults I posted on the previous page were all done at only 500MHz.
The CPU's default speed is actually 600MHz. At 600MHz you can play Assassin SE fine with sound and frameskip 1 in PUAE.
In the system settings you can set the speed up to 900MHz. Most Pandoras reach stable 800MHz which only drains a little more battery. (Note you can't harm the ARM CPU by overclocking. The worst case scenario is a freeze/reset.)