My thoughts are that if your offer is the highest of all the offers out there then it does stand a good chance of being accepted, especially for an REO. I have an all cash buyer who has been outbid on a few homes already for REO properties in Eastlake by non all cash buyers. If the difference is only a few thousand then of course you are in peril. For shorts your position is weaker because when you submit your offer you may be the highest amount but while the processing is getting done another offer can come in at your bid amount and if they have less financing then they will more then likely get the nod.
I agree with UR in that people are still out there buying with 10% down.
I am not sure I agree with that concept but it is indeed happening. Also you may not have to save another 10% to get to 20% down. Maybe you need to save 5% and housing prices drop another 5% and then you have made it.
I know with kids and a family it is hard to be patient especially if it means another year or two.