[iOS Memory Question] At ~35MB of memory on a heavily multitasked iPhone4/iPad we are getting suspend-crashes after lowmemory warnings. Is there anything we can do?

Hey Folks,

We have an iOS application that runs at ~35MB memory over its lifetime. We are getting crashes after 10 minutes or so of gameplay on an iPhone 4 and iPad that have many other applications in the background. Usually we get a LowMemory warning log (but sometimes not). This LowMemory log shows other programs being jettisoned. No other crash logs are generated. Generally our app appears to be suspended when this occurs, but attempting to un-suspend it causes it to reset.

Is there anything to be done about this (aside from using less memory)? We don't get any (!) crashes on our 3G - just on the iPhone 4 with heavy multitasking. Are we doing something that might cause iOS to be unable to terminate background apps, or that might cause us to suspend when this occurs?

Thanks!