[suggestion] Placeholder

Hey, Guys.
Thats my list of features I really miss in the mod.
Firstly I want to thank you for that wonderful mod. ;)/>/> keep up the great work.
But sorry for my bad english.

[Priority](only for me :D/>/>)
-High
-Medium
-Low

Computers:
saving the current status of the computer on leaving the map or closing server on SMP (running programms for example)

Rednet:
LAN-Cables(alternative to the wireless modem)
ability to hide modems behind the splitted block from eloraams redpower.

Turtles:
turtle.detect() should return the ID of the detected Block. (in case of air 0) not a bool.
Function for Getting the ID of the selected Item/slot(turtle.getItemID for example)
turtle.drop() should accept the amount as a parameter.

I will keep the list updated. Thanks for reading and feel free to ask questions.

turtle.drop() thingie is not really hard, just

function dropAmount(n)
for i=1, n, 1 do turtle.drop() end
return true
end

Computers:
saving the current status of the computer on leaving the map or closing server on SMP (running programms for example)
Can't be done effectively sorry.
Rednet:
LAN-Cables(alternative to the wireless modem.
Redpower Bundles?