Yeah, I bought my new laptop this week after 2 years of using a great Dell Inspiron 9300.  The new XPS M1730 is very fast, very heavy and looks pretty.  With 4 Gig of RAM, 400 Gig of hard disk at 7200 RPM, Intel Core 2 extreme 2.8 GHZ each, 5 speakers, built in Video camera, Dual SLI GeForce Go 8700, Blu-Ray Disc, oh yeah one more thing VISTA ULTIMATE.  It was disappointing to buy the laptop from the Dell web site advertising that 4 Gig will make your Vista Scream, well I ended up the one screaming when I found out that Vista will never be able to see that last Gig of Ram and that the max a Vista machine can see is 3 Gig.  Really bad on both sides:
1- Dell, why do you advertise such a thing when you know it is not possible to do.
2- Microsoft! I have a hard time believing with all the advancement of technologies and the 200 new products you put out a month, that you are having a hard time making your flagship OS of the future see 4 Gig of RAM, that is ridiculous.