Poster Stack allows you to build unique Stacks plugin based RapidWeaver pages, based on content items or entries. This could be a replacement of the RapidWeaver blog plugin, FAQ pages, a shop with products, a photo gallery of galleries, ... Endless possibilities.
Poster Stack is able to reuse the inbuilt CSS classes of the RapidWeaver Blog Plugin, so that it looks great inside standard themes. For Foundry and Foundation users, detailed style settings are available to adapt the look and feel to your overall design. In addition, you are able to design a complete own layout.
Further more, it is possible to generate posts based on server side text or markdown files, without the need to open RapidWeaver in order to create new posts.
Have a look at the demo and tutorial pages to get a better glimpse what is possible to build with Poster Stack.
In order to see how a migration process from Poster 1 to Poster 2 could look like, and a list of incompatible stacks and themes have a look at this documentation.