RFC : Double tap springboard / Lock screen

[lllopo]

I recently tried the SmartTap tweak and removed it shortly, but it actually introduced a gesture that I found so useful that I want to suggest it for inclusion in Activator. This is the double tap springboard/lockscreen action. SmartTap uses it to lock the device (sleep button press) and I found it so handy while I was using it, that I'm really missing it now that SmartTap is gone from my phone.