Network:
-------
	- Timeout on http requests if a server is down
	- Local cache for textures
	- Local cache for fonts
	- Dynamicaly allocation of unallocated IP Multicast addresses
	- Persistency handled by IP Multicast daemons
	- SIP client interface to invite somebody
	- e-commerce to order/buy/sell objects
	- Packet compression
	- RTSP client
	- IPv6 port

World & Objects:
---------------
	- Composite objects (parsing, moving)
	- Sounds when a collision occurs
	- Audio inside, volume adapted to distance
	- Dynamic gates coming in the interconnection world
	- Object World (direction, speed)
	- Object Into (inside an object)
	- Object Escalator
	- Object Fractal (plant, hill, mountain)
	- Objects Cloud, Fire, Vapor, Wind
	- Lightings: laser, spot
	- Temperature, density, viscosity
	- Automatic guide to visit
	- Paths (corridors, rooms,...)

Gui:
---
	- Double-clicking on objects to call default action
	- Display position
	- Image viewer
	- Visit cards
	- User preferences
	- Plugin Netscape

Graphics:
--------
	- Shadowing
	- Triangles, Polygons, Nurbs
	- 3DS reader
	- SGI reader
	- OBJ reader
	- TGA reader
	- MPEG-2 reader, incrustated video
	- MPEG-4 reader

Environment:
-----------
	- Template for add a new object

Ports:
-----
	- SGI/IRIX
	- Linux/Ipaq
	- Windows 9x/NT/2K

Doc:
---
	- man4 (description format VREF)
	- Describe network protocol VREP
	- Describe languages VREL, VREML

