1. Local Touch – Global Reach
7 Deadly Sins for Windows Phone Developers!
Samidip Basu
Manager| Columbus ADI Practice
Solutions Lead | MSFT Mobility
Email: Samidip.Basu@us.sogeti.com
Twitter: @samidip
Info: http://samidipbasu.info
Blog: http://samidipbasu.com
Sogeti USA
8425 Pulsar Place, Suite 300 | Columbus, OH 43240.
www.us.sogeti.com
www.us.sogeti.com

3. So, what are the 7 Deadly Sins?
 Pride – Overconfidence, failure to acknowledge, boasting ..
 Envy – jealousy, feelings of deprivation ..
 Gluttony – over-indulgence/over-consumption ..
 Lust – excessive desires ..
 Wrath – uncontrolled rage ..
 Greed – sin of excess ..
 Sloth – failure to utilize ..

4. Pride
 OverConfidence in MarketPlace submissions!
 Are you using the Marketplace TestKit & Emulator Tools?
 Are you using Beta testers?
 Each ISV is a vendor .. Let’s Unit Test before shipping
 Device testing, Isolated Storage Explorer, Mom test
 Aware of the biggest certification/UX glitches?
 Back Navigation
 App Exit
 Artwork
 Non-Metro look & feel
 No-connectivity mode
 Not taking user permissions

5. Envy
 Jealous of successful App developers? You have the same or better
opportunity
 Is your App discoverable?
 Search keywords & App Connect are a must
 Post-publication follow-up Marketing
 Does your app have it’s own brand?
 MSFT Promotions or App reviews by sites
 Are you pushing out Updates & answerable to your users?

6. Gluttony
 Overconsumption of phone’s resources, eventually leading to bad UX
 Overdependence on FAS & in-memory App-backstack. Did you stop caring
to handle Tombstoning?
 Never create Alarms/Reminders without user intervention
 Do not exploit the Contacts/Calendar API
 Just because you can, doesn’t mean you should. Let us remember Metro
design principles

7. Lust
 Blatant use of user’s bandwidth .. Not everyone is on unlimited data plans
 There is this thing called DeviceNetworkInformation, you know?
 Ahem .. What’s wrong here?
 Apps should do less on start-up & push off processing to backend ..
Remember Glance & Go!
 If you don’t have a Live Tile, how do you sleep?

8. Wrath
 Devs in other platforms making more money? I would argue we have more
of an opportunity
 Monetization of Apps
 Price sensibly
 Free Trials & locked features
 Ads, Ads, Ads
 PubCenter & AdDuplex
 Mention your app to anybody who would listen .. Ad promotions

9. Greed
 Make once & milk it everywhere & forever? Dream on ..
 Did you go Global without adding localization & globalization support?
 No shame in seeking localization language help
 Used complex custom data-templates for your listboxes? See what the
Profiler Tool says about your app
 And you took Background Agents to their death, didn’t you? Keep it light
folks
 Yes, you shouted for it in Mango. But tell me why you need that SQL CE
again?

10. Sloth
 What’s holding you back from leveraging the cloud to augment your
Windows Phone App?
 How will you scale up & down?
 Your viral idea in other platforms .. Did you consider OData to exchange
information?
 Reuse Push Notification backends for Windows Phone & Windows 8 Metro
Apps
 Why are you not using CDNs?
 Did you hear about Live Connect API?

11. Local Touch – Global Reach
Questions?
Thank you !!
www.us.sogeti.com