Examples of important OSS projects abandoned without any possibility for users to have some continuity?
Furthermore consider that an offline routing/map application without map updates is quite useless in 6 months, I'm not simply criticize their choices in development of the application per se, but mainly for the lack of maps update support (and I paid for them!) which was almost free for them (having other app versions for other platforms) but only if they designed maps files to be compatible with older version...and good design is one of the core points for a serious sw development company.