Aight.
does this mean i can take hard drives i already have (on my laptop or PC0 and put them in there?)?
No... there will probably be playstation 3 hard drives made by sony or third parties. But in theory any 2.5'' hard drive would fit in there.
So is this to look at pictures on a PS3 or just optional memory?
You got a PSP right? The PS3 is supposed to be another multimedia entertainment system so i suspect the memory stick is for PSP-PS3 connectivity, movies, music, pictures, save games (homebrew

)... Well at least for people without a hard drive.
does this mean ill be able to communicate with my computer and other blutooth devices, (celphone pocket pc ect.) and what purposse would that serve?
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so this means i can hook my controller up to my computer and use it as a joystick?
Im not sure on this, but I think the Bluetooth 2.0 (EDR) just means that PS3 has bluetooth... I mean there probably wouldnt be functionality between it and other bluetooth devices like phones and shit (unless they are sony phones or something). The PS3 needs that bluetooth thing because the controllers are running on bluetooth. And no I dont think the controllers will work on the computer...
wtf? so i can play my ps3 from my computer or sumthin?
No this is for media again... You will be able to put things from your computer onto the PS3's memory stick or hard drive... and maybe stream some media or access downloaded demos. Or maybe its just for online connection through a wired network, rather than just having wireless like the PSP.