UPDATE: I don't think it's true that ebay is removing listings of phones/tablets/ipods with it installed. After jumping through ebay's seller resources for way to long, I could only find a guide that doesn't say you absolutely must wipe your data. It just has a selling guide with the usually clean it, make sure you list any accessories, take well lit pictures, along with this text:
"Wipe your data
When you're ready to list your tablet on eBay, be sure to wipe all of your data and purchased apps before you list and sell it. Follow the instructions in your manual or from the manufacturer's web site. Wipe your tablet clean with a "factory" or "default reset," but make sure you back up any needed files before resetting your tablet. Once reset, you will not be able to retrieve any data from your tablet.
If your tablet has an SD data card where you stored data, remember to back up and wipe (also known as "format") the card, or remove and replace it. If your device came with a carrier-specific SIM card, you may need to remove it prior to selling. Contact your current service provider for specific instructions."
That to me is more of their recommendations for selling a tablet/phone so no one can access their account or see their nude pics they forgot they had on it than ebay's binding restrictions. Also a quick search of Flappy Bird shows that over a dozen devices with the game installed are about to be sold in the next 3-20 hours with thousands still listed. The tweet is either a farce or ebay support is taking their sweet time taking down the few auctions that are almost done.
The sad thing is there are tons of people thinking they can still sell their 2 year old ipad or iphone with an aged battery for $300-$2000 or Flappy Bird memorabilia. Even worse is the fact that a few listings actually have someone bidding over $300 on a iphones with it or even an unknown brand for $1000(it was 100 when I started typing this!). I don't think there will be as much of a collector's market for electronics with shitty palagarizing cell games on it as these people think. I'll stick to the 99 cent ipads that need $15 worth of parts to get running again if I want to start wasting money on ebay.
Edit:Ok I was wrong. I had a few of those in my watch list when I posted this last night. They are now completely gone with no indication those listings even existed. What pisses me off though is there are still several completed listings dated Feb 10 that have Flappy bird on them, every 10 of which did sell. What is Ebay doing? This doesn't make me feel competent about the consistency and thoroughness of their rule enforcement. There were and still are tons of listing they need to take care of, but it shouldn't be overwhelming them enough to let any slip past their eyes.
Also, I fixed some typos.