While the Android OS on the various hardware clearly will have an impact and since it's the new kid on the block it's market share should continue to explode. I think however Android has attracted many of the... shall we say geeks initially and it will be interesting to see if it appeals to the masses. Clearly phones like the N1 have made headlines for all the wrong reasons. Customer support issues, over priced ETF's, and recently reading more about some OS issues causing it to "freak out" as one of the posts describes.
While Android offers an open platform that comes with it's own issues, from apps not working across all versions or even all hardware due to the varying screen resolutions and hardware spec's. Their are clearly some issues that need to be sorted out and how that is sorted out will be a factor on it's continued growth.
As to the iPhone 4th Gen phone, if any of the rumors of 4.0 having multitasking comes true, lord knows SJ will sell it as the best thing since sliced bread. That could cause a spurt in market-share, but just as big a factor will be the continued expansion into China. Clearly they have the population to make a huge impact on any brands market-share, so if it takes off anything like it has in the US and elsewhere it could make the iPhone percentage take off rather quickly. The best thing about these types of charts is to revisit them in 6 months to a year so i'll have to mark their site and check out the end of the year results for 2010.