For those who are interested in increasing the RAM on their µA1s to 512MB, I found a source of SODIMMs for only $30.99US. Check out
Pacific Memory. Here is the direct link to model #
PM16SO6464LP512-133.
I thought it was too good to be true but for that price I ordered them anyway. I installed them a couple of days ago and just completed a single loop with memtester - without errors.