Serious bug: mweather home applet very often causes the desktop process to crash during boot time, causing a reboot loop. Every now and then it boots successfully. (FWIW I tried to cause successfull boots by e.g. plugging in the USB cable or by repeatedly pressing random hardware keys; I'm not sure if these had any effect). Booting until after the desktop crashes, then pluging in the charging cable, "powering off" (which actually just suspends the 770) and powering back on may caused the applet crash not to take down the whole desktop which will allow you to uninstall it.