yes, you are correct that abiogenesis is different than evolution. there are no testable theories to create a functioning cell from scratch, either. we can, however, show the individual pieces of cells will spontaneously form, as the lipid bilayer example i gave earlier. this is where the 'potential of science' i referred to earlier comes into play. it is within our means to explain abiogenesis entirely via the scientific method. after all, we already have a few of the key puzzle pieces figured out. the next step is to show how and why the work as a functioning unit. i also refereed to the idea of convergence earlier. this is a highly speculative field, but personally, i feel it has the ability to describe abiogenesis.
anyways, because we cannot figure it out yet does not give reason to install god to the problem, especially when we know many of the important pieces of the picture.
we probably know more about abiogenesis than we do about jesus christ himself. if you make the correlation that believing in jesus christ means you believe in god (i realize this is not the case, but just assume it is) then you should base at least equally as much faith in a working theory which describes abiogenesis. now, this may sound like a faith in science, but it is not. humans exhibit an incredibly savvy track record in the ability to describe our surrounding universe using the scientific method, given time and the allowance for breakthrough. you can make a logical deduction that the human array of knowledge will continue to grow based on our track record and the very apparent exponential growth in scientific discovery (versus time). since we already have pieces of the puzzle, it seems logical to me that we will weave these pieces together, it is only a matter of time.
with that said, i realize you can make equal claim that god was involved upon for said weaving of pieces. there is no problem with that, to me, since we can not disprove or fail to disprove it until more resources are devoted to the matter of abiogensis (which i suspect will be one of the next hot topics, since evolution stands on such solid ground now). but, i should mention, there is no logical reason as of now that god HAD to have been the one to assemble the pieces - it is merely that god COULD have been there, just as god could be the one who pushes objects toward one another instead of gravity.


Gimpish, GW2
Gimp411, BF3 and Tribes
Joy Division of Darkfall
Sevox of DAoC & Rift