"SSD – First steganograpic anon transaction over mobile.  This means that you can embed a transfer of SSD into an image that you take from your mobile and not have it traced – the image doesn’t suggest that a transaction has occurred.  That is pretty freaking stout in my opinion.  Development ongoing.

XST – World’s First anonymous SMS transaction.  Again, a mobile transaction that is anonymous. Development ongoing (this is a theme with everyone here so I won't repeat it).

APEX – In wallet developments – everything from social networking to casinos.  Aggressive dev team with an eye towards enabling web merchant transactions within their wallet.

UTIL – Content filtering to protect exit nodes from malicious and illegal content.  A great business feature.

SWIFT – geoSwift, a way to GPS locate and connect sellers/buyers via mobile.  

LXC – Working on BlueTooth transactions…meaning mobile transactions without internet connection.  Sidechain research and implementation planned.

FIBRE – An Aggressive dev team that has already created their own OS and have integrated FibreLock (an android style password system that renders keyloggers obsolete) into a BTC Modded wallet in addition to their own.  

NHZ – Asset Exchange and further expansion of NXT code."

what they each bring to the table, it's upto you to decide which you would invest in