I couldn’t let it go and kept thinking about that new Rosa tablet in Vietnam.
Studying this photo …
… I noticed “Wisky” as the manufacturer, with a logo.
Some Bing-ing (yes, I sometimes do that instead of Google) found them: Hong Kong Wisky Technology Co., Ltd.
Finding a working email address for Wisky has been, um, challenging. The first one I found bounced.
I found two more. They went through but neither has gotten a response. [Same-day update: One of these two bounced.]
In a news report I can’t find now, Viet Son said they expected to sell one thousand tablets a month.