Here are games that get my Gold Stars for great design, ease of play, and most importantly, fun & addicting!  These games have stood the test of time, lasting for months on my phone and hours of Gameplay.

• Drop7
• Flood-It
• Jewellust
• Airport Mania
• Hextacy
• Farm Frency
• Chicktionary

Other Apps for Android that you should check out:

• StudyBlue
• Pulse
• TEDAir
• This American Life
• TweetCaster (for Twitter)
• Wolfram Alpha