I don't exactly agree and I reject omnipotence without rejecting the other two omni's. It's more logical that way. I agree with the people who say those omni's are incompatible.
In what fashion is omnipotence incompatible with omnipresence and omniscience?
If I define Omnipotence as being able to accomplish anything within the confines of reality, and omnipresence as being everywhere within reality, and omniscience as knowing everything that is possible to know within the confines of reality, then I see no possible source of contradiction. In point of fact omniscience and omnipresence seem to follow as a consequence of being omnipotent. I am capable of doing anything as my power is maximum. I want to be everywhere at once. Ok I am all there.
In that sense omnipotence would be the only thing that could possibly "restrict" the other two. Not that such a being needs to be convinced that doing so would be in any way desirable or worthwhile to do; just needs to be possible.
Once you start asserting actual infinities is when you start getting into logical problems; such as those illustrated on the "What is omniscience" thread. These are only relevant inasmuch as they apply to real objects/constructs/beings. Anything which exceeds the scope of Reality need not care about something as "trivial" as contradiction.
That said I don't like omnipotence for a purely aesthetic reason. Omnipotence in a non-maximal sense; as in whatever this thing is is capable of doing anything in an unqualified manner,
defines and
breaks Reality. An omnipotent being that comes into contact with Reality causes all sorts of problems that I am woefully unprepared to deal with: vis-a-vis "What happens when Reality is not equal to itself?" "What happens when omnipotence decides to make all value untrue?"
Now if an omnipotent being does not interact with Reality in the slightest; that is to say that beyond the "non-creation of existence Ex nihilo" this being does not do anything to Reality, then I don't actually have any problems with it beyond the fact that it is wholly inconceivable to me in its nature (omnipotence in an absolute sense I am convinced must belong wholesale to Consummate Perfection and Consummate Perfection only).
MTF