Hacker Typer style application for Windows

Yes, you can use AutoHotKey. I'm sure somebody else could whip this up in no time, but I can at least imagine a possible structure to the script:

1. Define a Suspend hotkey and start suspended, so that you can use your keyboard when you don't want to be mashing. Alternatively, or in addition, use #IfWinActive to restrict the mashing-keys function to the one window within which you will be doing this.
2. Read a plain-text file into memory.
3. Stack multiple hotkey definitions for pretty much every key on the keyboard for your one script action.
4. Use StringLeft and StringTrimLeft to retrieve a single character from your big variable and delete it from the variable.
5. Use Send to send the character that you grabbed. You may need to do a little replacement or conditional to handle sending {Enter} and {Tab}, but maybe not.

Here's my script:

#UseHook        ; Avoid loops of the Send command triggering the hotkey again.
AutoTrim, Off   ; Don't auto-trim spaces and tabs from the beginning and end of the sourcetext.
SendMode InputThenPlay  ; Try to prevent the user from corrupting the buffer text.

Suspend, On     ; Start suspended

FileRead, MasherBuffer, magic-button-masher-text.txt
if ErrorLevel
    MasherBuffer = Type or paste text here. You can also drag-and-drop text files here.

Gui, +Resize +MinSize400x200
Gui, Add, Text,, When you are ready, un-suspend this script (Ctrl and `` together will toggle the suspension).`nType any character on the main QWERTY keyboard to send the characters from the buffer instead.
Gui, Add, Edit, vMasherBuffer, %MasherBuffer%
Gui, Show,, Magic Button Masher Buffer
Return

GuiSize:
if ErrorLevel = 1  ; The window has been minimized.  No action needed.
    return
; Otherwise, the window has been resized or maximized. Resize the MasherBuffer control to match.
NewWidth := A_GuiWidth - 20
NewHeight := A_GuiHeight - 50
GuiControl, Move, MasherBuffer, W%NewWidth% H%NewHeight%
return

GuiDropFiles:
Loop, parse, A_GuiEvent, `n
{
    FileRead, AddToBuffer, %A_LoopField%
    MasherBuffer = %MasherBuffer%`n`n%AddToBuffer%
}
GuiControl,, MasherBuffer, %MasherBuffer%
return

^`::Suspend

!`::Gui, Show,, Magic Button Masher Buffer

;   #IfWinActive ahk_class Notepad  ; This limits the button masher to Notepad.
`::
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Space::
GuiControlGet, MasherBuffer
StringLeft, outbound, MasherBuffer, 1
StringTrimLeft, MasherBuffer, MasherBuffer, 1
GuiControl,, MasherBuffer, %MasherBuffer%
if outbound = %A_Space%
    Send {Space}
else if outbound = %A_Tab%
    Send {Tab}
else
    Send {%outbound%}
return

You can make this only work in Notepad by uncommenting the #IfWinActive bit.

I have Ctrl+` defined as a hotkey to suspend the script.