I'm really not sure what happened to development on Reefknot.

However, there is active development in the DateTime project for a couple of modules that deal with ICal specifications:

• DateTime::Format::ICal
• DateTime::Event::ICal

These modules provide at least part of the functionality, but do not come near to the scope of what Reefknot was aiming for.

There are a lot of date/time/calendar dorks that hang out on the mailing list for DateTime (I'm one of them), so feel free to drop by and ask away.

Matt