Laszlo Systems and its Open Laszlo platform are clearly capable of forming the basis a complete Web Office suite of applications.

The Laszlo platform provides some of the richest web based interfaces I have ever seem. Laszlo combines AJAX with Flash to deliver everything from slide out menus and moving boxes to integrated music and video.

Laszlo Mail is an example of the kind of Web Office application that can be built with this technology.

I am not 100% clear whether Laszlo is going to become a provider of a complete Web Office Suite, or instead focus on offer the tools used to build a Web Office suite.

Clearly, most large firms will want to customize, extend and integrate their Web Office Suites into legacy applications and company specific systems. Given this, I am not sure what the market will value more: an out-of-the-box collection of enterprise Web 2.0 tools, or a platform that can be extended into anything. There will probably be room for both models.