HOLIDAY NOTICE: Please note that Wireless Watch will take its annual spring break next week so there will be a combined issue for the weeks commencing May 8 and May 15, to be published on Monday May 15. Voice-activated speakers and digital assistants may just seem like the modern, more annoying version of the old Microsoft paperclip, continually offering help and reminders where they are not needed. But while Apple Siri, Microsoft Cortana, Google Home/Now and Amazon Echo/Alexa may have a long way to go, we will look back on them as the advance guard in a crucial battle – to define and control the next generation of the mobile and web experience, on the long route to the Tactile…