3D stereo sound with 4 speakers + room correction

Hi all,
I´m Johnny - a long time reader of Audiogon, hifi geek and music producer from Denmark - and I have a "different" question to all of you Audiogoner´s out there.
Have anyone tried to do a stereo system - but with 4 speakers and room correction + time alignment? Fx 4 (same) speakers to 4 monoblocks or 2 power amps from a preamp + room correction. Maybe you´ve just tried with 4 speakers and no room correction - anyways - let me hear your experiences.
I´m thinking of - sometime in the future - if funds and space allows it - to do a system like that. I would put 2 speakers as fronts and 2 speakers as side speakers. I imagine that the room correction and time alignment would make it possible to achieve a 3D stereo sound that reaches your sweetspot at the same time - but still in stereo. The sound stage would be almost all around you and massive.
Is this completely nonsense or would it make sense to do a system like this?
Ps. If I had the money - I´m thinking - Soundlab U1 speakers + 2 or 4 JL Audio f113 subwoofers and some great amplification + source. We don´t have Soundlab speakers here in Denmark so I have yet to discover the sound of them - though I have heard both the biggest Magnepans and Martin Logans - and several other high end speakers incl. MBL (the big ones) Adam (reference setup) Avantgarde (the big system). My own speaker are Audio Physic Scorpio - and I´m actually very pleased with them and I will keep them for a while.
Please let me know your thoughts on my question.
ps. and thanks for letting me dream away in the member systems pages :-)

Regards
Johnny
Denmark