Service Automator Script for New File in OSX (Mountain Lion)

try
    tell application "Finder"
        set il to POSIX path of (insertion location as text)
        set ans to text returned of (display dialog "New-File Name: " default answer "")
        if ans is "" then return
        do shell script "touch " & quoted form of (il & ans)
        set f to POSIX file (il & ans) as alias
        if il is POSIX path of (desktop as text) then
            set selection to f
        else
            select f
        end if
    end tell
end try