Well OK, it wasn't exactly "in the wild" - respected Digital Trends journalist Andy Boxall had a chance encounter with the device in a demo room at the Huawei stand at the show in Barcelona's Grand Via exhibition centre earlier today.
Manufacturers often bring their unreleased devices to shows like MWC; because it's a tradeshow, they'll also be meeting with retailers and networks who will sell the handset in around six weeks' time. Digital Trends were able to photograph the rear of the device, but not the front.
We know the phone will launch at the end of next month in Paris - on 26 March to be exact.
The device wasn't working, but from using the Mate 20 Pro we've got a pretty good idea what the handset will be like in any case. The phone will almost certainly be based on Huawei's Kirin 980 platform seen in the Mate 20 Pro.
The P30 Pro looks like an evolution of the P20 Pro from last Spring with a triple camera. The camera looks a lot more uniform than the P20 Pro unit though, with all three lenses incorporated in the same camera bump. We are expecting some kind of superzoom lens tech thanks to the teaser video that Huawei has previously tweeted. Indeed, we believe the P30 line-up will have a 10x optical zoom, as Oppo have demonstrated in recent days.
Coincidentally, Huawei has fake Vogue and Link branding on this phone - expect Leica camera tech once again as well as Huawei to also be written on the rear. It also shows off a chrome finish, which would be a departure for Huawei. The buttons on the device are the same as before, while there's no headphone jack and a USB-C connector.
We don't yet know if the device will have Huawei's Balong 5G modem or will stick with 4G. Perhaps there will be a 5G option in addition to the P20 and P20 Pro.
We previously wondered if Huawei would wait for the Mate 30 in the Autumn to bring in 5G hardware, but with Samsung and LG having announced 5G handsets in the form of the Galaxy S10 5G and V50 Thinq, it's highly unlikely that Huawei would want to be seen lagging behind.