SeALign (pronounced "sea-lion" - cute logo pending) is an attempt to port Andrew Rambaut's Se-Al alignment editor to HTML5 Canvas and Javascript.
Se-Al is a fantastic piece of software. I use it constantly for inspecting and editing sequence alignments. However, it depends on libraries that are no longer supported in current versions of Mac OS-X. This is one of the major reasons why I've had to put off upgrading my system. A while ago I complained to Andrew about this and he proposed collaborating to port Se-Al to Cocoa. However, I contributed absolutely nil to this project (much to my chagrin) and as far as I know it hasn't moved forward.
I think it's possible to reproduce the functionality of Se-Al as a web application, specifically using HTML5 Canvas and JavaScript (jQuery because I'm lazy) to implement the graphical interface. I'm going to have a crack at it. Any help would be greatly appreciated - I'm more of a Python programmer these days and not very strong with Web languages.