The pump in price is a temporary one. It will go down eventually after a while. I can not say how much will it rise from the current price. I believe the Microsoft partnership have a little impact in the price rise. This is because they advertised such thing for many people. People buying emercoin at this buyer are truely buying because of the advertised speculation. However, emercoin is worth to be traded in a decent value against bitcoin.
I hope that is true because if it keeps rising, then I will miss the chance to buy EMC at cheap prices. It is still cheap, but I would like it to go down a little further to buy some. Most recently, Emercoin proposed a solution to reduce blocksize inflation. Check it out here:
http://cointelegraph.com/news/116067/emercoin-implements-solution-to-reduce-blocksize-inflationWhat do you think about this solution?
