Marvell’s line of processors are generally used in cellphones and PDAs, and currently top out around 800MHz. But the company just launched the new PXA168 chip which should be able to hit 1GHz or higher cllock speeds.
The goal is to provide “entry-level laptop” capabilities to consumer electronics devices like phones and PDAs. But I wouldn’t be surprised if we saw low end netbook makers try to build Linux-based systems around this chip. According to Marvell, the chip provides support for web surfing, internet widgets, multi-format video, Adobe Flash, and other features like video conferencing.