Chua Beng,
If your wish is for a small sensor camera (like 4/3s) mounted with fast lenses (f2 and below) to give you shallow dof which other brands DLSR users are enjoying, then you are coming into a wrong system!
You are not the first (nor will you be the last) photographer wanting shallow dof to get the bokeh effect (which is desirable to certain genre of photographers, but not all). If this is the photographic need you want fulfilled, then 4/3 system is not the system for you.
Knowing that the above is what you want, the 4/3s moderator (who has been around for quite a while and has dealt with other forum members asking the same question) quickly pointed it out to you.
It is better to inform you right off at the start before you invest in the 4/3s system and expensive fast prime lenses and then only to realize that you can't get your photographic needs fulfilled. You will then be dissatisfied and (maybe, maybe ah) start to feel shortchanged. Maybe (maybe ah), even ridiculed by other camera system users and for them to claim that their system is superior and that it can get shallow dof and fantastic bokeh at f/?? blah blah and 4/3s system cannot!
This then causes further misunderstanding of the 4/3s system, which I think the 4/3s community feels unjustified and it just gets perpetuated deeper and deeper. I think the 4/3s community has learnt to accept/ignore this misunderstanding and instead concentrate on photography.
As to whether i will buy the E5? Yes, I will. To top it of, I am also looking to buy an all in one f/2 prime ----- the 14-35mm. But not for the bokeh effect, but rather, to be able to use a higher shutter speed to get sharp pictures (some 4/3 members might say the 14-35 is too sharp, hor brothers?)