Nowadays, accessing of web information and services at anytime from anywhere is becomingrnrealistic using WAP enabled mobile devices. Mobile device users become rapidly growing fromrntime to time. In this thesis, an online Amharic word processor for mobile phone is designed andrndeveloped by considering the physical screen size, scripting language, text entry method ofrnmobile phones and nature of Amharic script. In order to design and implement the OLAWP, it isrnnecessary to obtain the visiting mobile phone capability attributes information first. Thernattributes that are used in this study are mobile phone physical screen height and status aboutrnwhether the mobile phone supports client-side scripting language or not. These capabilityrnattributes are obtained from the WURFL DDR in the cloud which is used to detect and return thernmobile phone capabilities to our site. The returned values are stored and used as an input in therndesign of the word processor interface, to select the type of the virtual keyboard and style sheetrnused, and to decide the scripting language used. The OLAWP site is designed and implementedrnto enable users to prepare simple Amharic documents wherever they go as far as the WAPrnenabled mobile phones exist at their hand and the Internet infrastructure exist. In the design ofrnOLAWP, the major activities are device detection and redirection to the compatible page, userrnand file manager, designing of the word processor interface by loading appropriate virtualrnkeyboard. In this work, the mobile phones are categorized into three groups: small, medium andrnlarge, and the Amharic virtual keyboard is grouped into small and large based on the mobilernphone screen height. Small mobile phones used small type of Amharic virtual keyboard andrnother groups used the large Amharic virtual keyboard. Finally, the OLAWP prototype evaluationrnis conducted through questionnaire by participating 15 different users in various types (in screenrnsize, text entry method, browser and brand) of mobile phones. The evaluation result showed thatrnbetter satisfaction and performance on some mobile phones which are touch based, and UC andrnAndroid browsers mobile phones compare to keypad based and Opera mini browser mobilernphones.rnKeywords: Amharic keyboard, Amharic word processor, mobile cloud service, mobile Amharicrnword processor, mobile virtual keyboard, online word processor, Wireless Application Protocol