I am currently having issues with my IM+ app on my iPhone 3GS. My online contacts are all showing as offline. It happened when I was out, and connected to 3G. I received 2 of the same PUSH notifications on IM+ MSN, and when I loaded IM+ it appeared that the contact was offline. I had done a check, back home on my desktop with several different MSN accounts, and found that my online contacts appeared appropriately on the computer, but not with IM+ 3.4. I paid for this app, and it isn't working. I tested it on Wi-Fi as well.
Specs:
Carrier: Rogers
Hardware: iPhone 3GS (with latest firmware)
IM Software Vers: IM+ 3.4
Connection During Error: 3G