A Day Apart: Live Notes on Mobile Web Design with Luke Wroblewski

Luke Wroblewski, A Day Apart, Mobile Design

A FEW QUICK NOTES from the first hour of A Day Apart: Mobile Web Design, an all-day learning session led by Luke Wroblewski (aka Day III of An Event Apart Seattle), Bell Harbor Conference Center, Seattle, WA:

Audience questions for Luke

  1. How to take a website for desktop to mobile?
  2. Do we need to care about non-Webkit?
  3. Trade-offs between native and web
  4. How to navigate differences between different versions of Webkit?
  5. Mobile e-commerce: best practices
  6. Challenges with different cultures/languages
  7. Media queries
  8. If no budget, what can focus on web to make mobile ok?
  9. How to take a website for desktop to mobile?
  10. Mobile e-commerce best practices
  11. Multiple screen sizes and pixel densities
  12. Time for one project: go mobile or tablet (in e-commerce)
  13. CMSes and mobile—sigh
  14. Best practices for page load

WHY MOBILE? Convincing clients/bosses to care

  • Of the 50% of total mobile commerce in the US, 70% of it is coming from one iPhone application (eBay).
  • eBay: global mobile sales $2 billion in 2010, $600 million in 2009. Real commercial opportunities emerging on mobile.
  • Best Buy: mobile web users doubling every year: 30M (2010), 17M (2009), 6M (2008).
  • PayPal: mobile transactions increased six-fold in 2009: $25M to $141M.


  • Double-digit (28%) rise in social networking on mobile web.
  • Twitter: 40% of tweets sent via mobile, 16% of new users start on mobile.
  • Facebook: 200 million active mobile users.
  • Instagram: iPhone only app took three months to hit one million users. Six weeks later they hit two million users.
  • Mixi (Japan): 85% of page views on mobile vs. 14% 4.5 years ago.


  • Google: mobile searches grew 130% in Q3 2010
  • Pandora: 50% of total user base subscribes to the service on mobile
  • Email: 70% of smartphone users have accessed email on mobile device

“I don’t want to be the record executive clinging to CD sales.”


Yelp: every other second a consumer calls a local business and generates driving directions from a Yelp mobile app.]]27% of all Yelp searches come from their iPhone application, which had 1.4 million unique users in May 2010.

Zillow.com: Viewing active listings 45% more often from mobile devices (audience is primarily active buyers, on location or scoping out neighborhoods)

Facebook: People who use Facebook on their mobile devices (200M active) are twice as active on Facebook as non-mobile users.

Shift in Usage

Let’s look at Gmail:

  • Visitors to web-based emails sites declined 7%.
  • Visitors accessing email on mobile devices increased 36%.

But what about mobile web usage?

Twitter Usage

40% of tweets sent via mobile.

16% of new users start on mobile.

Mobile web usage

  • Mobile phones will overtake PCs as the most common web access devices worldwide by 2013.
  • 600% growth in traffic to mobile websites in 2010.
  • Facebook and Twitter access via mobile browser grows by triple digits in 2010.
  • Average smartphone user visits up to 24 websites per day.
  • Top 50 websites constitute only 40% of mobile visits.
  • Opera Mini traffic up 200% year/year.

For more…

Follow the live tweets at afeedapart.com.