I don't have XL2007 yet, but I've been thinking about how I might need
to rewrite code to cope with the new worksheet grid size. Since XL2007
has 2^20 rows and 2^16 columns, it has 2^36 cells per worksheet.
That's more than can be stored in a long integer (which can store only
up to 2^31-1). Has the return type for the .Count property of the
Range class become Double type, or will .Count property calls for
ranges with more than 2^31-1 cells throw errors or (this'd be fun!)
return incorrect long integer values, e.g., returning unsigned longs
from the underlying Excel OM implementation that would be interpreted
as negative signed integers by VBA?

I did search Google Groups, but I found nothing on this.