The true aluminium seatpost will have a length of 100mm (unpadded) or a length 150mm (padded).
The proto weighs 156g / 0,343 lbs
The Exhib will be in stores propably in fall 2009.
This one will be another seat/seatpost combo, with a different shape than the Loyal seat. KHE's Exhib seat will be available in a padded and a unpadded version. The unpadded version will have different colorways: black, white and transparent. 
After doing a BMX 'zine for ten years (1987 - 1996) FATBMX made it on the internet. The year was 1998. Here to stay.