It is true that the A64's true power won't be unleashed until software developers utilize the 64 bit instruction set. However, that doesn't mean that the money is spent ALL in vain if you buy one now.
Here's an example
of a 2.2GHz A64 stomping a 3.2GHz P4 in benchmarks.
I'm anxious to see what these things are capable of when their full potential is realized....