Got it on my Razr now... One thing I've noticed, right off the bat... The OG slider, and the others, are thicker on the phone version than the tablet version. On the tablet, the sliders are lines, on the phone, it's more like bars.
As for my Acer A500 tablet, it's stock for the OS (only have approved updates and such installed, I've not done a root to it). It's running version 3.2.1, kernel version 2.6.36.3+ with build number Acer_A500_7.014.02_com_gen2...
I don't know about the Samsung tablet, but they can't be THAT different... Also, the fields are not grabbed nearly as fast on the phone, which makes me think it's something in the settings underneath (that I cannot alter) that makes it more sensitive on the larger tablet).
I still think having it so that people can use their tablet in either orientation is a worthy item. I read books in portrait orientation, I read many files that way, I even sometimes surf the web that way. The only time I'm more inclined to switch to landscape is when I'm typing on it (with the screen keyboard).
Since you're still coding this, you can make these changes, IMO. Personally, it doesn't hit enough points for me (yet) to donate any funds. I'm also not all that inclined to use it yet, especially since I do have the full version of BeerSmith running on my Windows 8 tablet (Acer W500)... Yes, I'm running the pre-release of Windows 8 on the tablet. It's much better than Windows 7 was on it (faster boot times, really FAST boot times, more responsive, and better onscreen keyboard to name just a few enhancements).