Skydrive would work great. Personally I think each person testing should input data into the excel file and one person should be responsible to create a master set of graphs from the input data. Only those testing should be able to modify the excel file. (I think it is possible to set permission with Skydrive) It would be great however if the file could be downloaded by anyone so they can play with the data and maybe spot something of interest.

A standard will be difficult to achieve when all drives use different SMART stats, but I guess a standard could be developed for each controller.

I think we are missing out by not capturing key metrics, so I hope this can soon be rectified.