The many splendors of PPTs

The Pinch Point Transit (PPT) first introduced in Rome's Revolution has a wide variety of uses. It is based upon the Casimir Pump. Many of the uses have been mentioned in previous posts but I thought I'd collect the entire list and enumerate them here:

PPT Tunnels - tunnels through space
PPT Transporter - MINIMCOM's whoosh/pop method of moving people and things.
MINIMCOM's Instaland - MINIMCOM's method of punching through the atmosphere of a planet.
Starprobes - Lensless cameras based upon micro-spaceships.
PPT Throwers - The sharpest blade in the universe.
MINIMCOM's roadgraders/cannons - used originally to build the campus for Rome's Library.
PPT Cannons used by the Vuduri to end The Robot War.
MINIMCOM's continuous project PPT tunnel star drive - capable of a sustained velocity of 1000 c.
The Null Fold Stardrive - the next generation capable of a top speed of 15,000c.
Null Fold X-drive - a new form of star drive that has no upper speed limit.
Entry to Heaven - this will be described into the upcoming novel The Milk Run.
The static tunnel between Earth and Helome - also used as a racial filter to keep out the mandasurte.
Unlimited free energy - The main Vuduri power supply.
Rei's chest (and back) protector - which saved his life in Rome's Evolution.
MINIMCOM's invisibility shield - used to sneak Fridone and Aason to Earth.
Aason's impervious armor - created to protect him from the Ice-sabers.

PPT Transceivers - modulated resonant micro-tunnels
The Overmind arose because of this.
MASAL was built based upon the PPT transceiver.
MASAL's Sipre (shadow) survived because of this.
Planet OMCOM - just sitting out there by the remains of Tabit.
VIRUS Units - used to vaporize MASAL and to burrow down to the Tevatron.
Rome's telepathy - the basis of Rome's Evolution required PPTs.
Aason's First Contact protocols which will be developed during The Milk Run.

Not specifically an entity to itself but when Rome and Rei were about to crash into Dara (when Estar was trying to kill Rei), Rome threw up a hybrid flash PPT tunnel that allowed them to jump past the moon. I'm sure I'm forgetting some uses of PPTs but these are the ones that come to mind.