Noisebud has released Bipro, an automated low end compressor. It acts similar to Noisebud's leveling amp Slow but will only compress the very low end (50Hz and down).
Bipro is meant to be placed somewhere at the end of a mastering chain to control the last dBs of flabby low frequencies - those frequencies that you can't hear at home but are so prominent at the club.
Price: $9.99.