Utrecht designers Rogier Martens and Sam van Veluw of Aandeboom have designed a flat-packed play house that can be attached to the trunk of a tree. More »

London architects Sybarite have completed the interior of a store in Las Vegas for fashion brand Marni, which features stainless steel rails snaking through the space. More »

Dezeenwire: the Venice architecture biennale have announced 'People meet in architecture' as the theme of this year's show, which is curated by Japanese architect Kazuyo Sejima of SANAA. See press release below. More »

Chinese studio Vector Architects have completed a sales pavilion for a construction site in Hefei, China, which features a series of enclosed courtyards. More »

Rotterdam studio GROUP A have completed a private residence cantilevered over a sloping driveway in Bussum, the Netherlands. More »

Apple CEO Steve Jobs has unveiled the iPad, a large touch-screen device for reading, browsing the internet, listening to music and playing games. Update: this project is included in Dezeen Book of Ideas, which is on sale now for £12. More »

Portuguese, Athens-based architects João Prates Ruivo and Raquel Maria Oliveira of Greece have been announced as the winners of UPTO35, a competition to design an affordable student housing complex in Athens, Greece. More »

Dutch interior architects i29 have completed a home in Amsterdam featuring one interior wall covered in plants. More »

London designer Nina Tolstrup of Studiomama has created a cabinet with hidden compartments made of reclaimed floorboards. More »

Australian studio Robert Mills Architects have completed a house surrounded by a pool of water in Melbourne, Australia. More »

Mulders vandenBerk Architecten of Amsterdam have completed a playground building in a park in Utrecht, the Netherlands, with a Corian façade engraved with images of fairytales from around the world. More »

Japanese architects Kensuke Watanabe Architecture Studio have completed an arch with a cross at its apex outside a church in Tokorozawa, Japan. More »

Lighting and furniture that appear to be covered in ice will be on show at Galerie Kreo in Paris later this week as part of an exhibition of new work by Dutch designers Studio Wieki Somers. More »

Aberrant Architecture have proposed a mobile office canteen so that people working from home in residential areas can feel like they're part of a big company. Update: this project is included in Dezeen Book of Ideas, which is on sale now for £12. More »