Is a laptop really the best alernative for an extended bike journey?

I much fancy todays portable hard drives, I just saw one 20go usb drive, smaller than two cigarett packs; really takes no space at all.

The setup i imagine is:
bar mounted pocket pc; blue tooth class 1 transmitter integrated + gsm included + gps.
-->
Hard drive equiped with bluetooth transmitter in USB and stuffed with anti vibrative foam into bikes toolbox under seat; offcourse made waterproof with silicone etc + power supplied from battery.
-->
2nd wonder!: a foldable blue tooth keyboard, takes no space at all.
or a virtual BT keyboard, even cooler.
-->
helmet equiped with quality stero speakers + microphone, blue tooth...and cable for power to battery.


Blue tooth is short distance low frequency radio waves, this would make the bike capable of many things.
In Europe check e mails while driving!?
Listen to music
get instructions from gps into ears
(watch movies)
telephone to friends while driving
install voice comand control utility; phone, mp3, mail, gps etc. do now!
bike2bike comunications
stop bike and lock off pocket pc, have a sit, fold up keyboard and access hard drive if bike is within 100 meters.
Park bike outside local cyber café, plug in little blue tooth usb transmitter, access your 20go, update your web site.

Has anyone done anything similar and do you see any limitations?
As the blue tooth to handle several things at the same time?

Matt


[This message has been edited by Matt595 (edited 06 February 2005).]

[This message has been edited by Matt595 (edited 08 February 2005).]