The LJ::TextMessage development team is going to lock down NOW. We want to iron out any bugs in the existing code without adding any new code. We hope to release v1.4.8 sometime in the next few days (although it could take a while longer for the new code to be available to LiveJournal.com users because we have to submit it to other LJ staff for them to install the new code on the servers).
Any provider requests made before this post WILL be included in v1.4.8. Any requests made after this post will not be added to LJ::TextMessage until v1.4.9.