By Intel's logic, they should lose all rights to x86. The x86 design is so popular and prevalent in today's PCs, Intel shouldn't have any rights to it anymore. If we are going to invalidate trademarks, might as well invalidate copyrights and patents too (they're all the same department). Find the most popular thing in any market and make it free to the public. Windows, iPods, Coca Cola, Wal-Mart, all these things should belong to us, because we made them so popular, screw the rights of the companies. Harry Potter was so popular I don't see why J.K. Rowling should get to hold the copyright for the rest of her life + 70 years, that's just not fair to all her millions of fans.
If Psion didn't have a proper claim to Netbook, it would be different, but Intel can't just argue to invalidate the trademark because they want to use it, that is bullying pure and simple. If Intel could show that NetBook was popular before Psion acquired the trademark in 1999, invalidate it. If NetBook didn't become popular until Asus released the EEE in 2007 (8 years later), then Psion has every right to defend its trademark. Remember 1999 was WELL before any other company released anything close to a Netbook. Psion was the first into this market, just a little ahead of their time (no Wi-Fi prevalence in 1999). They shouldn't be punished just because they pioneered a market.