Why isn't 4.3 available for Ipod Touch 2nd Generation?

Question

I bought the 8G IPod Touch for my daughter as a Xmas present in November 2009.  Now, less than 18 months later, I understand that Apple is refusing to provide the most up to date software version (ios 4.3) for this version of their product.
I would like to know from people who know the right answers:
i) whether this is correct
ii) whether there is any technical constraint in this model that prevents 4.3 running on this model
iii) whether Apple plan to provide any of the features of this upgrade in future software releases, particularly the Home Sharing function.
iv) whether this is simply a blatant attempt to force people to update their hardware?
Thanks

Answer 1

Apple only keeps iOS updates available to the current and previous generation devices. Part of this is due to older models may not be able to deal with all the features of a new iOS. I believe it is a blatant attempt to get people to upgrade, but wait until the holiday season before upgrading because this is when Apple tends to start sale of the next gen iPods.