The tide may be turning for tech IPOs as new interest in Europe shows some promising signs for tech companies wanting to go public. An article on Businessweek.com suggests that the market for tech IPOs is warming up, but not to the red hot level we saw in the late 1990s. One reason we won't see a repeat of the 90s: the companies being heralded into the public markets are mainly well-established, profitable tech companies -- not at all the whiz-bang kids of the dot-com era.