Unfortunately I don’t have an exact schedule to provide you for the curved text feature. It’s something we really want to see added, but is competing with a lot of other features for programming time. We’ll do our best to add it soon and I’ll update this forum thread once it’s available.
What we plan to do is release a public vote up/down system for enhancement requests, so that we can determine exactly which features are the most wanted and implement these first.
Sorry for any inconvenience in not having it live just yet!
– The Ribbet Team