Google has officially made available the Android P DP2 last night at the Google I/O 2018, and will also make available the Android P beta not only for its Pixels but also for smartphones of other manufacturers.
The list also includes HMD/Nokia: in the last hours has activated a section on its official website that will allow you to access the beta version of the new Android OS.
Nothing complicated, once logged into the site via this link you will need to log in with your Google account and connect your smartphone to the same account by simply filling out the form in the “Add Device” menu.
At this point, the smartphone will appear in the list of products related to our account and we can choose what to do with it, including receiving the update to the Android P Beta.
Note that after completing the procedure described above, the ROM can be downloaded and installed with ADB. The subsequent releases can be downloaded and installed via OTA update.
As of now to access the new version of Google software you need to be in possession of a new Nokia 7 Plus. We do not know yet if this possibility will be extended to other Nokia smartphones, but this is the first time that Google makes available the Beta version of its mobile OS even for smartphones other than their Pixel (formerly Nexus).