Android Users now have a better way to upload photos to Flickr, without using any apps or the old upload-by-email method. All you got to do is, go to m.flickr.com and you will find an upload link right there on the Flickr homepage.
You can see below screenshot of the regular flickr mobile home page on the left and the new homepage for Android 2.2 users on the right. Whenever you visit the page from Android 2.2 device you will see this new page.
A click on the “Upload“, will take you to the mobile upload page, where you will see the option to upload an image. Selecting this button gives you access to your photo gallery, where you can conveniently select the photo you like to upload.