I know there was a smaller one made last year I think called the Fuse where you would have unlimited color changes, but only if manually fed. Couldn't find a link for that. I only mention it because it is on a similar topic.

For different materials however, I think investing in an Azteeg board and a Kraken hotend would serve you better.

And btw, that HP thing looks awesome! Won't affect the consumer end of the market, but it can only be a matter of time before that starts filtering down the food chain.

well in 2016 this will coem on the market and when that gorilla hits.....

with all the ended patents of this last months, and all the work on SLA and SLS printers, it's too long... it is a good system is if were ready in the next 3 months... not in one year..

i even see a prototype of a full color printer that work as a addon to a standard inkjet printer like the bigger Mcor IRIS system...they print on paper then cut the paper as one layer, and glue them to the next sheet...

this is interesting it allows you to use up to 4 different colors or different materials in printing an object using just the 1 nozel this could be a game changer