This might be of interest to folks, in case you haven’t seen it. First, there’s RAPID and EAGER. RAPID is a mechanism for research that requires fast funding decisions (e.g. b/c the first language with only one phoneme was just discovered but its last speaker is just about to enter into a vow of silence). EAGERs are “Early-concept Grants for Exploratory Research” for exploratory work – i.e. high risk research with a high potential for high pay-off. One important property of both mechanisms is that submissions do not have to be sent out for external review, which should substantially shorten the time until you hear back from NSF.
Second, there is now a new type of proposal that is specifically aimed at interdisciplinary work that would not usually be funded by any of the existing NSF panels alone – CREATIV: Creative Research Awards for Transformative Interdisciplinary Ventures.
Note that all three of these funding types allow no re-submission.