Yeah, the NY tax credit ended at the end of February, 2005 (about 2 months before I bought my FEH! I didn't realize it had expired either...

). According to news reports, Gov. Pataki's proposed budget (for '06-07) would "restore" the credit, but I don't know if it would be retroactive back into '05, begin with the '06 tax year, or what. I guess if it is retroactive we will all have to file amended returns (but it would be worth it to get $2K in the pocket!). And that's only if the proposal is actually enacted; there's some opposition to it, but I don't know how much - at least a few lawmakers are of the opinion that hybrids are getting "mainstream" and there's no need to encourage their purchase, or that we shouldn't give a tax credit to someone who can afford a Lexus SUV.
There was a sales tax exemption also, but that also expired sometime before I bought my FEH; not sure if it was at the same time as the tax credit, or if that one was replaced by the flat $2K credit when it took effect.