I take extreme exception to this statement:
"Avoid Gears when used by smaller organizations that might not have sites well defended against malware."
That comment is tantamount to a direct attack on SMBs. Money != security - Windows is the archetypal example of that. Just because SMBs don't spend millions on security doesn't mean their sites are not secure. Security is a matter of common sense and comprehensive testing, not the size of your bank account. And the attitude behind the comment - that SMBs are untrustworthy and you should only deal with large multinationals - is playing into the hands of big business and denying small ventures a slice of the market by spreading FUD about the supposed insecurity of SMB sites. As if the big sites are any more secure - witness Facebook and MySpace security as an example. Shame on you.
As the IT Manager for an SMB web developer, security of all our sites is my foremost concern. All our back-end code is developed in-house and tested exhaustively against all known attacks before being deployed. All user input is escaped and parsed before being processed, all our back-end scripts are refreshed daily from backups in case any become compromised, complete logs are kept of all site activity, and I liase regularly with our hosting provider on security issues. Yes, there have indeed been a few hack attempts on our sites (mostly attempts at XSS injection and uploading images containing malware) but so far all have been successfully foiled and all details have been forwarded to the relevant authorities.
Our clients rely heavily on their websites, and the few customers they can glean from major sites, for their relatively meagre income, and FUD like this doesn't help their cause. If everyone adopted this attitude towards SMBs, we would soon see a nice unsafe Internet with only 4 or 5 constantly-hacked websites ruled by a few massive corporations. Do not want.
Google Gears looks like it has the potential to make many webmasters' lives easier and allow the creation of much more effective and personalised websites. Don't let this innovation become the province only of the big players. Just as the terrorists win if we lose all our freedoms, so too the spammers and scammers win if your fear drives all but the major players off the Internet.