I'm incredibly biased because I'm part of the WordPress community, but IMHO the static-posting model employed by Jekyll (and I guess fading-stalwart Movable Type) is fundamentally flawed for two reasons:<p>1) you are penalized for writing more and more content as your rebuild time will increase the more posts you have.<p>2) you cannot have any dynamic content that queries the database or dynamically builds the page other than at build-time.<p>I'm not sure whether the gem created by the OP is the holy-grail of Ruby based blogging, but it does seem as though Jekyll's current popularity is because it's the only decent Rails-based blogging tool out there, not because it's particularly well suited to the task.