WIth the impending purchase of Sun by Oracle, I'm thinking it could be one of 2 things:
1) ZFS will be killed and/or de-emphasized and/or re-licensed in such a way that Apple is not comfortable/happy with putting it into Mac OS
2) It will still be ZFS just not called ZFS anymore (either re-branded or forked by Apple or re-named by Oracle/Sun)
Unfortunately, IT is viewed a lot like the phones by most users. It's "invisible" when it does work, and is only a priority to them when it doesn't work (or they need something!)
I've found that the best way to make people happy is to effectively communicate with them -- especially when it comes to deadlines. Now I'm not saying to sandbag
If it's really burning you out after only 1 1/2 years, then you should really look at (a) your workload (b) your choice of career and (c) your work/life balance.
It is really going to depend on the track record of your company (and, eventually of your new product itself.)
For some companies, people won't deploy ANY
Since you're in the position of having a new product, now is the time to set the track record for it and make your 1.0 release work as perfectly as possible. If it is slow/buggy/crashy/bad, then being versioned 6.2 isn't going to help it at all.
On the eighth day, God created FORTRAN.