For many legacy BB users, BIS is one of the main reasons for not upgrading to BB10 is due to its compression, security and ability to function even with the crappiest GPRS signals (like at the peak of Kilimanjaro or the remote Galapagos islands). These characteristics make BIS well suited for the multi-country business traveller. BB should make BIS a separate subscription paid app if that is possible running on BB10 and even cross platform maybe.