cross-platform iOS/Android games, Words With Friends for Android does not provide the smoothest gaming experience... and that's being rather charitable.
You might be happy to hear that a couple of days ago Zynga released an update which promises to solve many of the Android-specific issues, such as notifications not popping up.
Sadly, installing the update is not a smooth experience; you have to manually uninstall the previous version, and then go to the Android Market and install it. What's nice is that it doesn't lose your saved games - this screenshot shows a game I've started before the update and continued after updating.
How's the new update working out for you? Let us know in the comments!