This AppleScript will accept `begin <todo-item>` in Alfred and translate it to x-callback-url invocation on iOS - involving Command-C and Begin. Requires: Alfred 2 + Power Pack, Command-C 1.0, and Begin.

AlfredToBegin

tell application "System Events"
  set theDevice to my urlencode("Eric Pramono’s iPhone") as string
  set theQuery to my urlencode("{query}") as string

  set theURL to "command-c://x-callback-url/copyText?deviceName=" & theDevice & "&text=beginapp%3A%2F%2Fx-callback-url%2FaddTasks%3Ftext%3D" & my urlencode(theQuery) 

  open location theURL
end tell

on urlencode(theurl)
	return do shell script "php -r 'echo rawurlencode(\"" & theurl & "\");'"
end urlencode