Well,
Frankly suprised there no official word on this, so rather then creating a new thread, figure I'll bump this and maybe we can get a FAQ ruling to settle the matter.
Personally I think it simply means one can deliver a touch spell through a weapon strike. That includes spells that provide a touch attack to the caster that have a range of touch (Chill Touch/Frostbite) for example, both which allow multiple touch attacks while the spell is in effect and later on potential to get the Dreaded Calcific Touch.
I do however agree with it being considered holding a charge to avoid players from stocking up effects, given by the reason one cannot have both Frostbite and Chill Touch affecting them at the same time (resulting in a nasty touch attack, unless you again choose to adjudicate that they must fire off seperate)
SO PLEASE press the FAQ button, or else god kills a kitten.