I just wanted to point out something for the A2109 users out there and people reading my initial review. Yesterday I was at FRY'S and they had the S2109 on display. I was able to play with it and here are something's I notice.
A2109 versus S2109
UI, the A2109 comes with a custom Launcher. It does allow easier navigation and shortcuts for apps. A lot easier than stock ICS. The S2109 does not have a custom launcher and comes with stock ICS. No bells and whistles or Lenovo custom widgets. This is really disappointing considering the K1 came with custom widgets or atleast one.
Performance, The A2109 runs smooth and fast. The Tegra 3 1.2GHZ Quad-core processor allows you to go in and out of apps with no problem. You still get an occasional hiccup or pause but, that's Android. The S2109 runs a little choppy. I'm presuming this is because the S2109 runs a Texas Instrument OMAP Dual-core Cortex processor at 1GHZ. Even navigating thru the setting the S2109 ran choppy.
System resources, I notice something about Android devices. Some device only show half the RAM when you are in Running app. This is found by Settings>Apps>Running or Running Services. I don't know why and I don't care. All I know I want to see all my RAM usage.
My HTC Flyer shows 219used/514free totaling 733MB shown out of 1GB of RAM. The Lenovo K1 showed half the RAM being used like 200used/312free totaling 512MB as an example. Even though the K1 has 1GB of RAM. Running would not show the other half. The A2109 does it like the HTC Flyer and shows the better portion of the RAM usage. Currently the A2109 shows 629used/346free totaling 975MB shown out of 1GB of RAM. If I stop Norton Anti virus app, it would free up 292MB of RAM. The S2109 showed half the RAM like the K1 does...which bothers me.
After playing with the S2109 the A2109 is an AMAZING BUY for $259.99 @Best Buy or in general. The S2109 was selling for $349.99 @ FRY'S which doesn't seem bad until you get your hands on the A2109. I say get the A2109 if you can. More bells and whistles, basically more bang for the buck.
Stay away from the S2109. Between the A2109 and the S2109, I feel Lenovo dropped the ball on the S2109. because the screen aspect ratio is a 4x3 ratio like IPad making it more natural to hold to most users. Just to note, the build quality and screen was really good on the S2109.
I haven't updated my A2109 yet and I'm afraid to. If someone can find a change log on the A2109 that would be great.
Note: the S2109 does not have a GPS or rear camera. The A2109 is still going for $259.99 @ Best buy. This is the best tablet under $300. Also, A2107s are at Best Buy for $159.99.
Thanks