How can you prevent ios from updating apps to newer versions which are incompatible with the version of ios running on the device? I have an iPhone 3Gs running ios 4.3.5. Some apps that show updates available, do not work with this version of ios. I accidentally updated Stanza and it stopped working. I had to find an older version of Stanza in my Time Machine backup and reinstall it on my iPhone.
My iPhone 3Gs has limited battery life, so I don't want to impact is further by updating to ios 5. I would buy a new iPhone, but 3 year contracts are standard in Canada, so it would cost too much to upgrade my phone.