I was thinking about coding Qt tapatalk client, but they don't seem to want open source client What would you do with whatsapp? Maemo has awesome telepathy based chat integrated Shazam, there is instinctiv. Shouldn't you try to solve the problem with Qvernote, instead of asking for new applications Kmplayer doesn't require flash? You can increase your battery life with QCPUFreq for example. There are quite a few proxy applications for linux.