1. I've got push enabled for my Exchange account. When my iPhone is asleep (screen off) and I was connected to WiFi at the time it went to sleep, will it continue to use WiFi for push events or will it flip over to either 3G or Edge (whichever is available). I ask because I've heard that WiFi is dormant while the iPhone is asleep--confirmed by the fact that when I wake the iPhone up, it appears to take it a couple of seconds to 'reconnect' to the WiFi network. This is a concern because if I'm in an Edge area and there is background push activity, an incoming call would be sent directly to VM (because Edge cannot handle voice and data simultaneously)? If I am understanding this correctly, this is a significant limitation.
2. The iPhone implementation is considered 'Outlook Web Access', which is more dependent on an internet connection. For instance, on my Centro I could do things offline like reading pushed messages. On the iPhone, it seems as thought it's accessing the network each time I select a message to view from the Inbox list--and if the network is no longer available (was previously available for pushing the list), the message cannot be 'downloaded'. Similarly, when I move a message to the Trash, it is not locally available on the iPhone in the trash folder until the iPhone again accesses the network (when I open the Trash folder) to 'retrieve' the updated Trash. Again, if I'm understanding this correctly, this appears to be a second-class implementation of Exchange. Never used a Blackberry...is that how BB's work also?
2. The iPhone implementation is considered 'Outlook Web Access', which is more dependent on an internet connection. For instance, on my Centro I could do things offline like reading pushed messages. On the iPhone, it seems as thought it's accessing the network each time I select a message to view from the Inbox list--and if the network is no longer available (was previously available for pushing the list), the message cannot be 'downloaded'. Similarly, when I move a message to the Trash, it is not locally available on the iPhone in the trash folder until the iPhone again accesses the network (when I open the Trash folder) to 'retrieve' the updated Trash. Again, if I'm understanding this correctly, this appears to be a second-class implementation of Exchange. Never used a Blackberry...is that how BB's work also?