Long story short... yeah, it works. Works wonderfully! Xandros is moving quicker than before, WinXP is trotting along at an almost acceptable rate (keeping in mind that I run it of a USB stick, and PupEee... well, PupEee was so snappy to begin with it's hard to say if there is any improvement.
Having armed myself with a screwdriver and a pot of coffee, I prepared my Eee for brain surgery:
There you have it - one Eee with a terminal lack of memory... but no worries, in a few minutes the patient will feel a lot better.
New memory module inserted... all that was needed at this point was a light and even preasure on the two upper corners to make the module snap in like...
...this. The patient is about to be sutured up and brought out of anaesthesia.
No worries - this wont even leave a scar - unlike my every day treatment of my Eee. If you look carefully, you can see a scratch on the RAM cover.
A quick peek at the BIOS - yeah, looks gooood. Should be smooth sailing from here on in.
Recreated the same screen shot as above - except the RAM is twice as high!