* Airbnb co-founder Brian Chesky issued an unconditional apology to an Airbnb host whose apartment was reportedly trashed and robbed. In addition, the company is also issuing a $50,000 guarantee against damages to hosts. The “Airbnb Guarantee” will apply to reservations starting August 15 but also retroactively cover prior damages, too. (Airbnb via TechCrunch)

* Apple revealed the price points for its upcoming iCloud service. Users will receive 5 gigabytes for free, and if they want more storage they’ll find three options: $20 a year for 10 gigabytes, $40 a year for 20 GB, and $100 a year for 50 GB. (9 to 5 Mac)

* Adobe unveiled Adobe Edge, new software that will let Web designers fashion online content with HTML5, JavaScript and CSS in lieu of Flash. (The New York Times)

* Twitter confirmed it’s received “significant” new venture funding — a reported $800 million — from investors like DST Global of Russia that values the social network at roughly $8 billion. (All Things D)

* How online firms are turning to celebrities like Justin Timberlake to create buzz and boost traffic. (Wall Street Journal)

* Android now accounts for 48% of the global smartphone market, ranking as the number one platform in 35 out of 56 countries tracked by research firm Canalys. (In comparison, Canalys reports the iPhone trails with a 19% market share.) (Reuters)

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