Still, the team is optimistic that its efforts will eventually bear fruit; it believes COS could replace existing desktop operating systems within two years, and their mobile counterparts within three to five. It may have a realistic shot at this when the Chinese government has lately been giving both Apple and Microsoft platforms the boot in response to fears about American surveillance. However, that could still be a daunting task in at least some situations. Right now, the Chinese smartphone market is dominated by Android devices, many of which come from local manufacturers like Xiaomi. There isn't exactly a rush to replace Google's platform with something brand new, no matter how well-made it might be.