Thousands of Microsofties yucked it up at the expense of rival Apple at their annual get-together at Seattle’s Safeco field on Thursday.

Saturday Night Live star Seth Meyers set about the old foe, which had its own festival of self-congratulation yesterday.

“Who at Apple let an 8-year-old girl name their new operating system Snow Leopard?,” Meyers asked, according to one employee spreading the good word on Facebook. “What, was Unicorn taken? Was Pony not available?”

Fair point, perhaps. But what’s this? A preview of the first TV ad for Microsoft’s new Windows 7 operating system, airing on prime time tonight. It features a young girl and a — admittedly kitsch — unicorn.