One reason we're not at 1.0 yet is because the original 1.0 goal was to have complete SVG 1.1 support in, which will likely never happen. We changed the version numbering scheme to better reflect where we think we are.
The reason why we're still not there right now is because there are some essential things like canvas coordinates, fixed "flow text" support (so it works in browsers), etc that we need to rectify first before we're comfortable with 1.0.
The reason why we're still not there right now is because there are some essential things like canvas coordinates, fixed "flow text" support (so it works in browsers), etc that we need to rectify first before we're comfortable with 1.0.