HP's Autonomy Buy: 10.25 Billion USD out of 13 Billion USD

We spotted this today:

"Hewlett-Packard plans to spend some $10.25 billion to acquire Autonomy, the United Kingdom-based software and services company. HP’s balance sheet currently has $13 billion in cash. Why is the company making such a big bet? According to HP’s CEO Leo Apotheker, it’s now or never"

Statistics Source: GigaOm