You mean disabled after seeing that moderators can't keep up with the posts about PIFTS?

RTFA: "The beta Firefox 3.1 will still have a few bugs to work out, but Mozilla officials have promised that eight of the security flaws found in the current browser, six of which have been rated critical, will be fixed in the updated version. The most serious of these vulnerabilities are already being repaired, and can be downloaded as patches from the Mozilla website."

Since you'd rather not have military control weapons either, I guess these are best in nobody's hands (i.e buried).

If you have a look at http://top500.org/lists/2008/11/performance_development it takes more than 6 years to get 10 times actual performance (quicker than Moore's law, hrm). Given that the actual top is at 1PF, going to 20 in 3.5 years is quite an achievement.

it is not like you can have 2 values for a single bit at the same time.. and density is so high these days that it makes sense to have a single write wipe the previous data forever.

It exists already, it is called a routing registry. The most famous is RADB but they can use IRRd to have their own private version (which they probably do already).

It does if you can justify the need to Google, for now they have quotas (see http://code.google.com/intl/fr/appengine/articles/quotas.html).

AppEngine quotas explained