soulfire wrote: API available:
http://www.multicharts.com/multicharts/sdk/
It seems like a top quality environment for strategy creation and testing. I know cost is an issue and whether the brokers would be able to offer it free for use to all clients is an open question I guess.
Any idea what the practical costs are - the API costs quoted are from $3k-$5k - which is out of reach for all but determined developers - and the rest you have to call for. Even if the costs per SDK can be spread - what about runtime licences - you usually have to add them as well - I dont think any Empty4 "substitute" will fly until the costs drop to $10-$100 per month per trader.
I am not sure how much traction you will gain with a "pure" open source (for most that means FREE) solution - you are expecting skilled programmers to give up a lot of free time for few rewards - i myself would pay a reasonable regular fee for something that worked for me but any solution would have to cater for the many people who are playing with $10k accounts (never mind those with $1k accounts and less)
Empty4 is not free out of the goodness of MQ hearts