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1、Philosophy and GoalsAndroid is an open-source software stack for mobile phones and other devices.Origin and GoalAndroid was originated by a group of companies known as the Open Handset Alliance, led by Google. Today, many companies - both original members of the OHA and others - have invested heavil
2、y in Android, typically in the form of allocating significant engineering resources to improve Android and bring Android devices to Market.We created Android in response to our own experiences launching mobile apps. We wanted to make sure that there would always be an open platform available for car
3、riers, OEMs, and developers to use to make their innovative ideas a reality. We wanted to make sure that there was no central point of failure, where one industry player could restrict or control the innovations of any other. The solution we chose was an open and open-source platform.The goal of the
4、 Android Open Source Project is to create a successful real-world product that improves the mobile experience for end users.Governance PhilosophyThe companies that have invested in Android have done so on its merits, because we believe that an open platform is necessary. Android is intentionally and
5、 explicitly an open-source - as opposed to free software - effort: a group of organizations with shared needs has pooled resources to collaborate on a single implementation of a shared product. The Android philosophy is pragmatic, first and foremost. The objective is a shared product that each contr
6、ibutor can tailor and customize.Uncontrolled customization can, of course, lead to incompatible implementations. To prevent this, the AOSP also maintains the Android Compatibility Program, which spells out what it means to be Android compatible, and what is required of device builders to achieve tha
7、t status. Anyone can (and will!) use the Android source code for any purpose, and we welcome all such uses. However, in order to take part in the shared ecosystem of applications that we are building around Android, device builders must participate in the Compatibility Program.Though Android consist
8、s of multiple sub-projects, this is strictly a project-management technique. We view and manage Android as a single, holistic software product, not a distribution, specification, or collection of replaceable parts. Our intent is that device builders port Android to a device; they dont implement a sp
9、ecification or curate a distribution.How We WorkWe know that quality does not come without hard work. Along with many partners, Google has contributed full-time engineers, product managers, UI designers, Quality Assurance, and all the other roles required to bring modern devices to market. We roll t
10、he open source administration and maintenance into the larger product development cycle. At any given moment, there is a current latest release of the Android platform. This typically takes the form of a branch in the tree. Device builders and Contributors work with the current latest release, fixin
11、g bugs, launching new devices, experimenting with new features, and so on. In parallel, Google works internally on the next version of the Android platform and framework, working according to the products needs and goals. We develop the next version of Android by working with a device partner on a f
12、lagship device whose specifications are chosen to push Android in the direction we believe it should go. When the n+1th version is ready, it will be published to the public source tree, and become the new latest release. Go to top 报告称谷歌Android应用开发人员多来自美国2010年01月27日18:45腾讯科技编译/小贝我要评论(0) 字号：T|T 导读该报告指
13、出，有65%的Android应用开发人员来自美国境内。Distimo认为，这是因为付费应用这种商业模式在美国兴起的时间比较早。腾讯科技讯（编译/小贝）北京时间1月27日消息，据国外媒体报道，应用商店分析工具提供商Distimo于近日发布的12月份报告显示，大多数Android应用开发人员来自美国，而微软Windows Mobile应用的平均售价较高，仅次于黑莓手机应用。Distimo的这份报告对应用程序的发展进行了分析，主要关注美国、英国、欧元区和日本这四个地区的应用开发人员，并得出了一些有趣的发现。大多数Android应用程序的开发者来自美国（腾讯科技配图）该报告指出，有65%的Androi
14、d应用开发人员来自美国境内。Distimo认为，这是因为付费应用这种商业模式在美国兴起的时间比较早。同时，欧元区、英国和日本的Android应用开发人员所占比例分别为20%、12%和3%。Distimo的报告指出，在Android应用商店的应用售价方面，欧元区的售价最高，为平均每款应用售价4.42美元，比美国Android应用的平均售价2.96美元高出50%。英国和日本的Android应用平均售价分别为3.31美元和2.28美元。黑莓与微软Windows Mobile应用售价较高（腾讯科技配图）Distimo还对iPhone、黑莓、Windows Mobile、诺基亚平台以及Android应用
15、进行了横向比较。通过对比发现，黑莓和Windows Mobile这两个最受企业用户欢迎的手机应用平台，其应用售价也最高。黑莓应用的平均售价达每款8.26美元，而Windows Mobile应用的平均售价为6.99美元。iPhone、Android和诺基亚平台的应用售价差不多，分别为3.62美元，3.27美元和3.47美元。Windows Mobile应用将近7美元的平均售价令人略感意外。Distimo对Windows Mobile应用进行了分析。在总共812款Windows Mobile应用当中，在美国可以买到的最多，为639款，紧随其后的是英国，可以买到264款；排名第三的澳大利亚仅能买到2
16、16款。另外，Distimo的分析发现，在所有应用平台当中，即时通讯软件都是最受欢迎的应用，另外游戏也非常受欢迎。Distimo每月发布的报告显示，智能手机应用的发展不仅速度快，而且呈现出全球化的趋势。2010 中国 Android 开发者大调查报告在过去的两年中，Android 的发展势头是非常迅猛的。作为有着庞大开发者群体和众多硬件厂家的中国，Android 的发展形势又是怎么样的呢？Android 开发组进行了一个为期三个星期的中国 Android 开发者调查问卷，收到有效答卷 501 份，现在 ifanr 公布调查结果，欢迎其他各博客媒体转载使用。（这里先感谢 ifanr 和众多推上好友友情转推调查卷链接：）超过三分之一的调查者是业余开发 Android，但个人和公司开发也占到 40% 以上，总共有超过 70% 的调查者是专业人士：至于开发者团体大小，目前超过 6
