Eh i own a pda,
I'm plannin to use it for surfing
i do own a lappy and has wifi too
the reason i got the pda phone was for surfing,cos sometimes i might be looking for just a lil' bit of info and i don't want to go through the trouble of getting the lappy outta my bag and on it and off it, it's kinda bothersome.
With a pda ,u can just buka the wifi and hook on
Btw im studying in a uni,Sometimes it help to keep u entertain like games and e books.
One down side, battery lasts 2 days
Btw if u ran outta battery while surfing for some important info, im sure ur pda will be much of a use.
My lappy last +/- 3 hours on wifi.
Third party software help u keep track of ur expenditure.
Bout the navigation thing havent really tried it out, dunno how to use , might be tryin it in the future.
BTW Pda phone now are much more value for money than normal hp, for less than 1k,u can get new / 2nd hand pda phones,
Reccomended pda phones are ranged between 1.5k to 2.5k
All the best dude

HMM.. THIS is my first pda phone too
i use it for msg and games 1 hr daily like that, phone call once in a while
can last me 2 days too
i thought that was crap when i read this thread again where i see people's pda lasting 1 day
haha
;P