I still use a iiixe today. Mainly as an ebook reader due to the great battery life and as the inverted green backlight works very well in the dark (easy on the eyes).

~30 day battery life and you can keep multiple sets of rechargeable AAA when you are away. Features you can't get at any price on modern PDAs.

Plenty of apps/games around - I use these frequently.

weasel - ebook reader

pdesk - todo organiser (has pc companion software)

shoplist - nice shopping list

rogue - fun game

scrabble is good too