I ordered two of them (one by accident, LOL) two months ago. Haven’t heard anything since. No order updates. Emails to their sales team have gone unanswered. Not sure if my case is typical but that might have been $450 I never see again …
Both my orders (PineBook Pro and PinePhone) took a while to arrive but I got them both.
Also, HK has some restrictions on shipping until June 7. You'll get it. They're a small company, give them a chance.
Got mine running Manjaro XFCE (installed on internal storage) and it's great. The screen is really nice.
Edit: looking at other comments, it probably came from China which tends to be better for not getting caught with import charges.
https://www.pine64.org/2020/05/15/may-update-pinetab-pre-ord...
I expect they are quite busy, and China / HK obviously have their CV-19 issues.
The shipping page can be helpful for when the next batch will ship.