Memorandum of understanding is 99 out of 100 times the first step in coming to a more solid agreement. It means the 2 companies have agreed that they have found some common ground that may benefit them both, and both are interested in continuing the effort towards some sort of partnership. A memorandum of understanding also usually includes an exclusivity clause that both parties will make the best effort to come to a mutual agreement between themselves before talking to someone else.
Really hasher Im beginning to doubt your business sense.
He who smiles at lofty schemes, stems the tide of broken dreams. R.Hodgson