We have been discusing this step internaly for quite some time. We were not sure if we could cope with this but the final decision could only be one :-).
We are not sure where this will lead us. We will react if we encounter to much strain on our servers. In the mean time we offer You the embed option without any limits, ads or other such crap and we are very hopeful that it will stay that way.
If something does not work, needs fixing or You simply want some option to be added just let us know in the comments.