ExtJS and Sencha Touch are totally different products. Although their structure and classes are (very) similar they work in different ways because of the nature of the intended targets. However, if you know your way around ExtJS you're likely to find it fairly easy to transition to Sencha Touch and get things up and working quickly.
First thing would be to familiarise yourselve with the syntax and coding patterns. Look at the tutorials and screencasts that are about in the Learning Centre - even ExtJS ones are useful if you're wanting to go down the Sencha Touch route. Study the examples and play around by changing configs and seeing the results.
The biggest advice I think is to persist, don't get overwhelmed by the learning curve, cos it is quite steep, especially if your JS experience is limited. Focus on getting small things working before getting swamped with the big application you want to create.
Turkiyenin en sevilen filmlerinin yer aldigi xnxx internet sitemiz olan ve porn sex tarzi bir site olan mobil porno izle sitemiz gercekten dillere destan bir durumda herkesin sevdigi bir site olarak tarihe gececege benziyor. Sitenin en belirgin ozelliklerinden birisi de Turkiyede gercekten kaliteli ve muntazam, duzenli porno izle siteleri olmamasidir. Bu yuzden iste. Ayrica en net goruntu kalitesine sahip adresinde yayinlanmaktadir. Mesela diğer sitelerimizden bahsedecek olursak, en iyi hd porno video arşivine sahip bir siteyiz. "The Best anal porn videos and slut anus, big asses movies set..."