It's useful to rememebr that there's no such thing as an access data base. Access is a pc client program that currently uses the Jet 4.0 data base engine. In the past, access has used other data base engines. In the future, access will be using a version of MSDE - aka MSSQL-lite, aka MSDE2005, aka Access/MSDE.
You can already use Access with MSSQL/MSDE and MS is working to make the distribution of Access/MSDE data bases within networks closer to the ease of distribution of the current .mdb Access/Jet data bases. They are also engaged in developing better conversion programs from .mdb's to MSDE/MSSQL. Some of what they're doing entails modifying MSSQL server to include some Jet functionality.
One issue MS has to work out is licensing for web servers - will they bundle Access/MSDE under whatever name as a freebie, will the hosting company have to have a full mssql license, will Access/MSDE run on the web server or on a separate server as MSSQL does.
My thought is that within a couple of years Access/Jet will be going the way of the dinosaur and Pascal Programming.
EDIT: But Gullanian's point is like a Smith & Wesson - it beats 4 Aces.
Edited by dpyers