[DeepThought]

"The Manta is the first Free Diving Computer to calculate and track Nitrogen Tissue Loading, allowing you to switch between SCUBA dives and Free Dives on the same dive day." (from the divetank link)

I wonder what model they have for that and what experimental data they rely upon. If they got the algorythm correctly it should be good for freediving with no scuba invovled as well. In that case I would be really interested to know what limits it sets.
On first look this claim doesn't sound reliable to me, is this a mistake? Are they risking a tsunami of potential lawsuits?