Some thing spring to mind:

• Cellular coverage affects not only your internet connectivity but also loads the CPU
• Mobile devices CPUs are usually slower
• Mobile OS's impose a lot of restrictions that doesn't exist in Desktops, for example IOS handling of multi tasking
• Compatibility is a pain, Android or IOS behaves slightly different on different devices, even screen resolution is different.
• Battery impact has more sides to it, mobile OS's have tricks to save power so you might find yourself in places you didn't expect. One example are data calls that can go dormant, taking seconds or more to resume.
• Cellular data introduce large delays and packet losses ratios, for example mobile TCP timers are much larger, making detection of connection loss more difficult.

Some thing spring to mind:

1. Cellular coverage affects not only your internet connectivity but also loads the CPU
2. Mobile devices CPUs are usually slower
3. Mobile OS's impose a lot of restrictions that doesn't exist in Desktops, for example IOS handling of multi tasking
4. Compatibility is a pain, Android or IOS behaves slightly different on different devices, even screen resolution is different.
5. Battery impact has more sides to it, mobile OS's have tricks to save power so you might find yourself in places you didn't expect. One example are data calls that can go dormant, taking seconds or more to resume.
6. Cellular data introduce large delays and packet losses ratios, for example mobile TCP timers are much larger, making detection of connection loss more difficult.