Samsung has just announced the Samsung Galaxy Note 2, which will be available early this fall. Since I am not here to redo what others have already done, I suggest that you listen to the following YouTube video that does a good job at describing what the Samsung Galaxy Note 2 is all about.
I already use a Galaxy Note 1, purchased in December 2011, which was just updated to Android 4.0.4 (Ice Cream Sandwich). Therefore, I am not ready to upgrade for now even though this new version is an improvement from the original device. It would be different for someone looking to buy.
As you will see, the Galaxy Note is evolving more and more to use the S Pen extensively. It differentiates the Samsung products from its competitors, mainly Apple. The more the S Pen becomes functional, the more it becomes attractive and productive to use.
For the time being, I am waiting for Windows 8. Every day, we see hardware manufacturers coming out with very interesting combinations of laptop/tablet products. This week Dell announced a new laptop with a tilt screen that becomes a tablet. Details at: http://content.dell.com/us/en/corp/d/secure/2012-08-30-dell-xps-tablet-ultrabook-all-in-one.aspx
Samsung has announced a laptop with foldable screen that can be turned into a tablet. It also has announced a detachable screen laptop that becomes a tablet: http://www.dailytech.com/Samsung+Announces+Series+5+Series+7+Slate+PCs+with+Windows+8+/article25559.htm .
Over the next few months, you will see a whole slew of similar products to accommodate Windows 8 that will support both mouse and keyboard, plus touch screen and tablet like functionality. Once we have a full view of the different offerings, I will trade my current Lenovo laptop for a new Windows 8 combination laptop/tablet, this most probably around the Christmas timeframe, once most of the offerings have been announced. In the meantime, we will keep monitoring what comes out to identify the most promising approaches and will post our findings.