You might be interested inthis post by RLScott2 who says that as of this month, the App Store will reject all apps which are compatible with the iPod Touch 2G. If Ismaelsbaby had a 3G instead, at least developers would be ABLE to make new apps for his or her iPod.
I own one of those 8GB models that came out in late 2009. I'd patiently waited for the new models to be released so that it would have the standard 3-ish years of OS updates for new devices. Let me say that I'm basically resigned to whatever's happened, but I'm the curious type so I did some research to find out what Apple did to make so many customers and retailers believe that this model was a 3G.
Here is a Web Archive of the familiar Apple page Identifying iPod Models from December, 2009:
http://web.archive.org/web/20091219113215/http://support.apple.com/kb/HT1353
You'll notice that the names and descriptions of the iPods are different from the current version:
http://support.apple.com/kb/HT1353#iPod_touch_late2009
The original version says:
The iPod touch (Late 2009) can be distinguished from iPod touch (2nd generation) by looking at the back of the device. All iPod touch models introduced in Late 2009 have two or three lines of text below the capacity engraving. The prior iPod touch (2nd generation) had four lines of text or more.
where the new version says:
The iPod touch (3rd generation) can be distinguished from iPod touch (2nd generation) by looking at the back of the device. In the text below the engraving, look for the model number. iPod touch (2nd generation) is model A1288, and iPod touch (3rd generation) is model A1318.
My 8GB model fits the original description, having two lines of text blow the capacity engraving. According to Apple's original description then, it is "distinguished from the iPod Touch (2nd generation)". That means different from.
Only later did Apple decide that it was a 2nd generation after all. Yes, there are conflicting classifications regarding the memory capacity, but Apple did originally say that it was different from the 2nd Generation..