SSC SDK Version 0.9 is Available for Download

Paul,
Some quick questions regarding the SDK and "pvwattsfunc" - If there is FAQ link that would be fine too.
1) What is the solar position algorithm used in this function (Michalsky?)
2) Which tilt algorithm is being implemented in the PVWattsfunc POA calc? (I assume Perez "1990").
3) How is module temperate derate being calculated? Is pvwattsfunc using the same as Ver1 (i.e. simple flat plate efficiency model). What are a,b,dt (if used) and temperature coefficient (polycrystalline -.49)?
4) How important is "previous timestep values of cell temperature and POA" as used in pvwattsfunc? I guess the more important question is how are these values used in the current timestep?

BTW: thanks for making pvwattsfunc available in the SDK!

I will answer part of my own question for 3:
gamma (Max power temperature coefficient %/C default = -0.5)
Sorry about not fully reviewing the documentation.

Dear Paul,

over the last year I have been using SAM in combination with Excel through the use of VBA, for which an example script was released along older versions of SAM based upon which I have implemented our solution. For the last releases this script was not available any more, yet the implementation still worked.
Will this way of using SAM via Excel/VBA still be supported in future versions or will I have to think of a different way of having SAM communicate with Excel?

Thanks!
tric