I have followed Marimba but have never bought/shorted its stock and I'm only a techie.
The main reason I didn't buy was techie. At the time I started following it, I thought push technology had an strong future. Later, when it was clear it didn't, I didn't see any other significant use for Marimba's technology. Everything that it can do, other technologies have been starting to do. For example, deploying applications to desktops can be done by Microsoft, Veritas, etc. Also, with applets, active-X controls and web access, this is of less use. There will always be the case like Schwab or Intuit of updating their customer's remote PCs but that is a limited market, IMHO. As for the new Timbale software, it seems like a last gasp. Too much competition from CA,IBM,SUN,Microsoft, etc.
The reason I never shorted them is frankly I never had the guts to. It was a stock that defied my techie reasoning and I didn't want to get burned by a momentum wave it may catch. From reading this board and the Kim Polese fans, this could have certainly happened.
I think Marimba has been caught in a technology shift that has left it very limited future potential unless their business plan changes. As for the slow quarter, remember that every healthy software company has a sales backlog which is used to iron over a few sales that are missed each quarter. The size of this miss indicates that their backlog well is dry.