Will 2013 be the year we all embrace GI mobile technology? Maybe but... there are a number of obstacles still ahead! Geospatial solutions are very data-centric and whether you are in the office or in a remote location they need to consume large amounts of data. This is not always easily achieved in remote locations with poor connectivity. At the same time Open Source is increasingly being considered as a credible technology choice for desktop, web and mobile platforms. There is undoubtedly a growing community and standardization of the Open Source stack. This paper looks at the challenges and opportunities that are brought about by these two issues and addresses the key rules to consider for enabling geospatial technologies on mobile platform. This paper will look at the following key issues: Rule 1 – Data Storage. Streaming GI data requires good bandwidth, by implementing a caching mechanism the end-user will always have access to the data for a given area. Rule 2 - Use Open Source. Free and Open Source software for GIS has evolved significantly in recent years and in some cases faster than commercial alternatives. The mobile field is a bit different and few experts are using free and open source mobile GIS, despite the good tools that exist. Rule 3 - Use Open Standards. In combination with the use of Open Source products, Open Standards can help future proof the solution. Rule 4 - Simplify User Interfaces. The time of the stylus is gone and users now expect to use their finger for driving the application. Specific attention must be paid to designing simple and clear user interfaces. Rule 5 - Implement Non native Solutions. Should separate solutions be developed for IPhone and Android? Could the answer be instead to actually develop non native solutions reducing development and maintenance costs. Armed with these rules we will look at the challenges on the road ahead to implementing your GI Mobile solution.