"Seattle's not going anywhere" Commissioner David Stern said.

SEATTLE - NBA Commissioner David Stern said at half time of the Spurs vs Nuggets game on Saturday night that "Seattle's not going anywhere". This was reported by Arnie Staplelton of the Associated Press.

I'll also note that the AP story online is often missing this paragraph at the bottom, even though I read it last night on some of the same media sources, including NBA.com

NOTES - The Nuggets are 2-5 in their last seven home playoff games, including two losses to San Antonio in 2005. ... Commissioner David Stern said at halftime he was optimistic Denver would get a WNBA team by next season. In a wide-ranging chat with reporters, he also insisted the Sonics would stay in Seattle. The Sonics' lease at Key Arena runs through 2010, but the Sonics aren't obligated to play in Seattle past next season without a new arena deal. "Seattle's not going anywhere," he said.
© 2000 - 2007 The Bryan-College Station Eagle, 4/29/07, 11:28am

I think the paragraph is vanishing from media sources because it isn't directly connnected to the Spurs vs Nuggets game.

Regardless, he said it and AP writers are pretty good at reporting accurate quotes.
This one quote can mean a few things:

1. The Commish is peaved that Clay Bennett said his first choice of destinations is Las vegas.
Note to Bennett: this isn't the NFL, and you're not Al Davis. You can submit papers to move and maybe the league says no. That can happen.

2. The Commish is peaved that Clay Bennett said he might leave Key Arena early.
Note to Bennett: this still isn't the NFL, and you're still not Al Davis. The NBA likes to have teams play out leases when possible, and avoid having any NBA team in court with any municipality. You can submit papers to move next year and maybe the league says no. That can happen.

3. The Commish was giving the NBA rubber stamp of "staying put"" even if they are working to leave a situation. This option does not mean that they want to leave the 15th largest media market for the 45th, or leave for the 31st television market in Kansas City. Having a team drop in value, due in part by it's value of local media, is bad for the NBA. The Commish will protect the league overall value, the action of one team can have an impact on the national television value.

4. The Commish knows that there is still a real chance of the Sonics staying in this media market.

I think that it's part of all 4 options. How they are weighted, and how long this lasts before the Sonics either strike a deal to stay here, or get the public support of the Commish to leave, is unknown.