Slamming just says "let's not fight"
When Radio Free Europe report that "Georgian parliament speaker Nino Burjanadze today slammed the Commonwealth of Independent States", they're missing the point slightly. The news isn't that Georgia dislikes the CIS (we know that already), but that they aren't doing anything about it. 'Slamming' is a de-escalation, not an escalation, compared to their other options.
If Georgia wanted to cause trouble, they would be trying to leave the CIS. That's what the opposition want, and what Russia is afraid of: this summit was due to be held last month, at the height of Georgian-Russian anger, but Russia arranged a postponement to avoid a rash pullout by Georgia.
Leaving the CIS is one of the few weapons Georgia has against Russia: the organisation represents the last vestige of Moscow's control over its 'near abroad', but is being held together with chewing gum and bits of string. To the East it's being eclipsed by the Shanghai Cooperation Organization, and to the West by GUAM. Since these can fulfil most of the functions of an international talking shop, nobody except Russia has an interest in keeping the CIS running. If Georgia left, it could plausibly bring down the whole house of cards.
But the Georgians are being smart. If they actially leave the CIS, they lose a barganing chip and don't gain much beyond the joy of watching Russia suffer. Much better to turn up, refuse to pay membership fees, grandstand about Russia's crimes, and keep that threat on the table:
"We are here to make sure once again if we have any reasons to stay in the organization, or it has no future," Burjanadze announced.
Along with the recent replacement of the Defence Minister, this seems to be part of a very sensible pattern of de-escalation by Georgia.