Great blog here studying disruptive technology.  This post is on to something we covered before, when I reviewed the use of Microsoft Office in Banks. 

This review here covers three key elements to consider with Office products.  I would add a fourth – cost.

1. Are collaboration and version control becoming more important to a rising group of workers? 
2. Are twenty-something young professionals getting more experience and familiarity with Google apps early in their careers?
3. Are most customers overshot with complexity and functionality in current office applications that they never use?

Source: Michael Urlocker Examines Disruption and Disruptive Processes – Classic Disruption: Microsoft Dismisses New Google Apps as Inferior

This all has to be considered in the context of how Office is used in Banks.  90% of a Banks staff (round numbers) are located in branches, and on average the use there is relatively unsophisticated – letters (yes some letters), simple spreadsheets, reading the odd powerpoint, and Outlook for email.  HQ people are different with relatively sophisticated spreadsheets, and Powerpoint’s, plus Outlook for email.

1. Even the sophisticated users are not using the depth of capability contained in the suite
2. Even if they are, do they need to?  How many times have you been annoyed with a singing , dancing animated powerpoint, when all you want to do is read a strategy story?

Cost:  The normal price for enterprise Office Suites for decent sized Bank is in the mid 8 digits – not cheap. 

So with all that context, perhaps Google docs and spreadsheet is worth a second look by the IT strategy group, even after Google license it, which they will likely do at some point.