So the WP7.8 update has begun rolling out to most of first generation Lumia owners (Lumia 710 800 900...).
I couldn't wait and have since upgraded to the Lumia 920 (WP8), but I still owned my Lumia 900 and after upgrading it to the WP7.8 update, I was curious to see how it compares against the new WP8. We already know there will be major differences but I didn't realize just how much of a difference we would be looking at.
Here is a video comparing WP7.8 and WP8
As you can see, quite unfortunately the update Wp7.8 doesn't really bring much to 1st generation Lumia phones, just a new start-screen really. Everything else pretty much remain the same, the Lumia 900 still doesn't accept file transfers over Bluetooth and a lot of the non-hardware related apps and features are still not available on these WP7.8 phones, the games hub and music+video hub are still the same, no difference there.
If you had difficulty deciding on whther to upgrade to the new WP8 phones, I can tell you now that getting a WP8 device (preferably the Lumia 920 or even the 820) is the best option to enjoy the new and rich features and content the WP8 offers.