While a number of Android owners are enjoying, or looking forward to, the Android 2.2 (Froyo) update, Sony Ericsson Xperia X10 owners are still waiting for the Android 2.1 update. That wait is now destined to be even longer.Sony Ericsson has announced, in a blog post, the postponement of upgrades, X10 Mini and X10 Mini Pro owners from the end of September to the end of October. At best.You see, that's only half the story. For a start, the upgrades will be rolled out gradually, so if you are at the back of the queue, the wait is even longer. Not only that, if you have a contract with a network, each of those networks will have to check the upgrade before it goes out to its users.According to Sony Ericsson's Rikard Skogberg: 'We are of course not happy about the change of launch timing, but we have had to spend some additional time on the software to really makes sure we roll out with the right quality and user experience.'Of course, there's another issue. As we mentioned earlier, the update is only to Android 2.1, 2.2 isn't mentioned at all and judging by the time taken to upgrade to 2.1, you wonder if it will ever arrive.