what is wi-fi? and e71

[jye92]

hey guys. i want to buy the e71 and it cums with wi-fi and i dont no wat it is. so if it wud be really apprectiated if u cud let me know.

and if anyone knows anything about the e71 advantages and disadvantages plz help!

one last thing does any one no if u can use windows messenger or yahoo on the e71 and if it costs anything?

thank you